Envelopes

42 products

  • 6 Medium Mail Bags

    Martello UK 6 Medium Mail Bags

    43 in stock

    Ship your items with confidence using this 6 pack of medium mailing bags, designed for secure and reliable delivery. Made from durable plastic containing 30% recycled materials, these eco-friendly bags offer a responsible packaging solution while protecting contents from moisture and handling. Ideal for sending items such as diaries, fabrics, stationery, toys and small parts. Featuring a strong peel and seal closure, these mailing bags provide a secure and tamper-resistant seal during transit. The writable surface allows for quick and clear addressing, making them perfect for both personal use and online sellers looking for a practical and cost-effective mailing solution. Key Features: Eco-Friendly Material – Made with 30% recycled plastic for sustainable packaging Waterproof & Durable – Protects contents from moisture and transit damage Peel & Seal Closure – Strong adhesive strip for secure and tamper-proof sealing Medium Size – Ideal for posting a variety of everyday items Writable Surface – Easy labelling for clear and professional addressing

    43 in stock

    £1.10

  • 3 Large Mail Bags

    Martello UK 3 Large Mail Bags

    28 in stock

    Send larger items with confidence using this 3 pack of large mailing bags, designed for secure and reliable delivery. Made from durable plastic containing 30% recycled materials, these eco-friendly bags provide a practical and sustainable packaging solution. Ideal for posting clothing, diaries, toys, stationery and other bulkier items with ease. Featuring a strong peel and seal closure, these mailing bags ensure a secure, tamper-resistant seal to protect contents during transit. The waterproof material helps guard against moisture, while the writable surface allows for clear and professional addressing. Perfect for both personal use and online sellers. Key Features: Eco-Friendly Material – Made with 30% recycled plastic for sustainable packaging Waterproof Protection – Keeps contents safe from moisture and handling Peel & Seal Closure – Strong adhesive strip for secure and tamper-proof sealing Large Size Capacity – Ideal for posting clothing, toys and larger items Writable Surface – Easy to label for clear and professional presentation

    28 in stock

    £1.10

  • 2 Extra Large Mail Bags

    Martello UK 2 Extra Large Mail Bags

    6 in stock

    Ship bulky items with confidence using this 2 pack of extra large mailing bags, designed for secure and reliable delivery. Made from durable plastic containing 30% recycled materials, these eco-friendly bags provide a sustainable packaging solution while offering excellent protection during transit. Ideal for sending clothing, books, stationery, toys and other larger items. Featuring a strong peel and seal closure, these mailing bags ensure a secure and tamper-resistant seal to keep contents safe. The waterproof material helps protect against moisture, while the writable surface allows for clear and professional addressing. Perfect for both personal use and online sellers looking for a dependable packaging option. Key Features: Eco-Friendly Material – Made with 30% recycled plastic for sustainable packaging Waterproof Protection – Keeps contents safe from moisture and handling Peel & Seal Closure – Strong adhesive strip for secure and tamper-proof sealing Extra Large Capacity – Ideal for bulky items such as clothing, books and toys Writable Surface – Easy to label for clear and professional presentation

    6 in stock

    £1.10

  • 40 Manila C6 Envelopes

    Martello UK 40 Manila C6 Envelopes

    49 in stock

    Send your correspondence securely with this 40 pack of C6 manila envelopes, ideal for everyday mailing at home or in the office. Designed to fit A6 cards or A4 sheets folded into quarters, these envelopes are perfect for invitations, greetings, letters and small documents. The classic manila finish provides a smart and professional look suitable for both personal and business use. Featuring a secure adhesive seal, these envelopes ensure your contents stay protected during transit. Practical and reliable, they are an essential addition to any stationery collection, offering a dependable solution for all your mailing needs. Key Features: 40 Pack C6 Envelopes – Ideal for everyday mailing and card sending C6 Size Fit – Suitable for A6 cards or A4 folded into quarters Secure Adhesive Seal – Keeps contents safe during delivery Manila Finish – Professional brown appearance for all correspondence Versatile Use – Perfect for invitations, letters, notes and documents

    49 in stock

    £1.10

  • 40 Manila DL Envelopes

    Martello UK 40 Manila DL Envelopes

    19 in stock

    Handle everyday mailing with ease using this 40 pack of DL manila envelopes, perfect for both personal and professional correspondence. Designed to fit A4 sheets folded into thirds or A5 sheets folded lengthways, these envelopes are ideal for letters, invoices and important documents. The classic manila finish provides a clean and professional appearance. Featuring a convenient peel and seal closure, these envelopes offer quick and secure sealing without the need for moisture. Practical, reliable and easy to use, they are an essential addition to any home or office stationery collection. Key Features: 40 Pack DL Envelopes – Great value set for everyday mailing needs Standard DL Size – Fits A4 folded into thirds or A5 folded lengthways Peel & Seal Closure – Quick, secure and mess-free sealing Manila Finish – Professional brown appearance for all correspondence Versatile Use – Ideal for letters, invoices and document posting

    19 in stock

    £1.10

  • 25 Manila C5 Envelopes

    Martello UK 25 Manila C5 Envelopes

    13 in stock

    Send your documents securely with this 25 pack of C5 manila envelopes, ideal for everyday mailing at home or in the office. Designed to fit A5 documents flat or A4 sheets folded in half, these envelopes are perfect for letters, forms, invitations and important paperwork. The classic manila finish offers a clean and professional appearance suitable for both personal and business use. Made from high-quality paper, these envelopes provide durability and protection during transit, helping keep contents safe and intact. Practical and reliable, they are an essential stationery item for efficient and organised correspondence. Key Features: 25 Pack C5 Envelopes – Ideal for everyday mailing and document sending C5 Standard Size – Fits A5 flat or A4 folded in half Durable Paper Quality – Protects contents during posting and handling Professional Manila Finish – Clean and smart appearance Versatile Use – Perfect for letters, forms, invitations and documents

    13 in stock

    £1.10

  • 12 Manila C4 Envelopes

    Martello UK 12 Manila C4 Envelopes

    6 in stock

    Send larger documents and items with confidence using this 12 pack of C4 manila envelopes, ideal for home, school or office use. Designed to hold A4 sheets flat without folding, these envelopes are perfect for documents, certificates, handmade cards and lightweight items. The classic manila finish provides a clean and professional look for all types of correspondence. Featuring a convenient peel and seal closure, these envelopes ensure secure and mess-free sealing while protecting contents during transit. Made from smooth, lightweight paper, they are easy to write on, allowing for clear and neat addressing every time. Key Features: 12 Pack C4 Envelopes – Ideal for sending A4 documents flat without folding Peel & Seal Closure – Secure and easy-to-use adhesive strip Smooth Writable Surface – Easy to address clearly and neatly Professional Manila Finish – Clean and presentable for all correspondence Versatile Use – Suitable for documents, cards, mail and light items

    6 in stock

    £1.10

  • 2 Large Board Envelopes

    Martello UK 2 Large Board Envelopes

    42 in stock

    Protect important documents during transit with this 2 pack of large board envelopes, designed for secure and reliable mailing. Featuring a sturdy full-board construction with rigid front and back panels, these envelopes help prevent bending, folding and creasing, making them ideal for sending A4 documents, certificates, photos and presentations. With a generous size of 35 x 26.5 x 0.4cm, these envelopes offer ample space while maintaining a slim profile. The peel and seal closure ensures quick, secure and mess-free sealing, making them perfect for both home and office use when sending valuable paperwork safely. Key Features: Rigid Board Design – Strong front and back panels prevent bending and damage A4 Large Size – Approx. 35 x 26.5 x 0.4cm for documents and certificates Peel & Seal Closure – Secure, quick and easy sealing without tape 2 Pack Value Set – Ideal for sending important items safely Versatile Use – Perfect for contracts, photos, reports and presentations

    42 in stock

    £1.10

  • 6 Size A Padded Envelopes

    Martello UK 6 Size A Padded Envelopes

    1 in stock

    Send smaller items securely with the U. Mail® Size A Padded Envelopes, designed to help protect delicate contents during posting and delivery. Measuring 100 x 165mm, these compact mailing envelopes are ideal for sending small items such as jewellery, accessories, memory cards, small electronics, or important documents. The padded bubble lining helps cushion the contents and reduce the risk of damage in transit. Supplied in a great value pack of 6, these envelopes are perfect for everyday mailing needs in the home, office, or small business. Lightweight yet protective, U. Mail® padded envelopes provide a reliable and convenient solution for posting items safely. Key Features Size A – 100 x 165mm – Compact mailing envelope ideal for small items and documents. Protective Bubble Lining – Cushioned interior helps protect contents during transit. 6 Pack Envelopes – Great value pack suitable for everyday mailing needs. Lightweight Mailing Solution – Helps keep postage efficient while protecting items. Home & Office Use – Ideal for online sellers, home offices, workplaces, and general post.

    1 in stock

    £1.10

  • 5 Size B Padded Envelopes

    Martello UK 5 Size B Padded Envelopes

    1 in stock

    Protect your items during posting with the U. Mail® Size B Padded Envelopes, designed to keep contents cushioned and secure while in transit. Measuring 120 x 225mm, these envelopes are ideal for sending small documents, accessories, electronics, and other delicate items. The internal bubble lining provides added protection, helping reduce the risk of damage during handling and delivery. Supplied in a great value pack of 5, these padded envelopes are suitable for everyday mailing needs at home, in the office, or for small business use. Lightweight yet durable, they provide a convenient and reliable solution for sending items safely through the post. Key Features Size B – 120 x 225mm – Ideal for sending small items, accessories, and documents. Protective Bubble Lining – Cushioned interior helps protect contents during transit. 5 Pack Envelopes – Value pack suitable for regular mailing needs. Lightweight Mailing Solution – Helps protect items without adding unnecessary weight. Home & Office Use – Perfect for home offices, workplaces, and small business mailing.

    1 in stock

    £1.10

  • 4 Size C Padded Envelopes

    Martello UK 4 Size C Padded Envelopes

    1 in stock

    Send items securely with the U.Send® Size C Padded Envelopes, designed to help protect contents during posting and delivery. Measuring 150 x 225mm, these envelopes are suitable for sending A5-sized documents and small packages, making them ideal for use at home, in the office, or at school. The internal bubble lining cushions items in transit, helping to reduce the risk of damage. Each envelope features a strong peel and seal closure for quick and secure sealing without the need for additional adhesives. Made from durable kraft brown paper, these envelopes are lightweight, easy to address, and designed to help keep packages looking presentable throughout their journey. Supplied in a great value pack of 4, they provide a practical and reliable solution for everyday mailing. Key Features Size C – 150 x 225mm – Suitable for A5 documents and small items. Protective Bubble Lining – Cushioned interior helps protect contents during transit. Peel & Seal Closure – Strong self-seal strip for quick and secure sealing. Kraft Brown Paper Exterior – Durable, lightweight surface that is easy to write on. 4 Pack Envelopes – Great value pack for everyday home, school, or office mailing.

    1 in stock

    £1.10

  • 3 Size D Padded Envelopes

    Martello UK 3 Size D Padded Envelopes

    1 in stock

    Send items with confidence using the U. Mail® Size D Padded Envelopes, designed to help protect contents during posting and delivery. Measuring 180 x 265mm, these envelopes are suitable for sending documents, accessories, and small packages while helping to prevent damage in transit. The internal bubble lining cushions the contents, providing extra protection during handling and transportation. Supplied in a great value pack of 3, these padded envelopes are ideal for everyday mailing needs in the home office, workplace, or small business environment. Lightweight yet durable, they offer a practical and reliable packaging solution for sending items safely through the post. Key Features Size D – 180 x 265mm – Suitable for documents, small packages, and various postal items. Protective Bubble Lining – Cushioned interior helps protect contents during transit. 3 Pack Envelopes – Convenient value pack for regular mailing needs. Lightweight Mailing Solution – Helps keep packages protected without adding excess weight. Home & Office Use – Ideal for home offices, workplaces, and everyday posting tasks.

    1 in stock

    £1.10

  • 3 Size E Padded Envelopes

    Martello UK 3 Size E Padded Envelopes

    1 in stock

    Send items securely with the U. Mail® Size E Padded Envelopes, designed to protect medium-sized parcels during posting and transportation. Measuring 220 x 265mm, these envelopes provide a practical mailing solution for documents, accessories, and small to medium items. The internal bubble lining helps cushion contents in transit, reducing the risk of damage while handling and delivery. Each envelope features a strong peel and seal closure for quick and secure sealing without the need for additional tape or adhesives. The durable kraft brown paper exterior offers a traditional look while helping protect the envelope from scuffs and marks throughout its journey. Supplied in a great value pack of 3, these padded envelopes are ideal for everyday use at home, in the office, or for small business mailing needs. Key Features Size E – 220 x 265mm – Suitable for medium parcels, documents, and various postal items. Protective Bubble Lining – Cushioned interior helps protect contents during transit. Peel & Seal Closure – Strong self-seal strip ensures quick and secure sealing. Kraft Brown Paper Exterior – Durable and easy to write on for addressing. 3 Pack Envelopes – Great value pack for everyday home, office, or business mailing.

    1 in stock

    £1.10

  • 2 Size F Padded Envelopes

    Martello UK 2 Size F Padded Envelopes

    1 in stock

    Post documents and parcels with confidence using the U. Mail® Size F Padded Envelopes, designed to help protect contents during transit. Measuring 220 x 340mm, these envelopes are ideal for sending A4 documents and medium-sized items without folding. The internal bubble lining cushions contents, helping to reduce the risk of damage while packages are handled and delivered. Each envelope features a strong peel and seal closure, allowing quick and secure sealing without the need for additional tape or adhesives. The kraft brown paper exterior is durable, lightweight, and easy to write on for clear addressing. Supplied in a great value pack of 2, these padded envelopes offer a practical and reliable solution for everyday mailing at home, in the office, or for small business use. Key Features Size F – 220 x 340mm – Ideal for A4 documents and medium parcels. Protective Bubble Lining – Cushioned interior helps protect contents during transit. Peel & Seal Closure – Strong self-sealing strip for quick and secure packaging. Kraft Brown Paper Exterior – Durable surface that is lightweight and easy to address. 2 Pack Envelopes – Great value pack suitable for everyday home or office mailing.

    1 in stock

    £1.10

  • 2 Size G Padded Envelopes

    Martello UK 2 Size G Padded Envelopes

    1 in stock

    Send larger items securely with the U. Mail® Size G Padded Envelopes, designed to help protect parcels during posting and transportation. Measuring 230 x 340mm, these envelopes are suitable for sending documents, accessories, and larger items while helping to reduce the risk of bending or damage. The internal bubble lining cushions the contents, providing extra protection throughout delivery. Each envelope features a strong peel and seal closure for quick and secure sealing without the need for additional adhesives. The durable kraft brown paper exterior is lightweight, easy to address, and helps prevent the envelope from appearing scuffed during transit. Supplied in a great value pack of 2, these padded envelopes provide a practical mailing solution for home offices, workplaces, and everyday postal needs. Key Features Size G – 230 x 340mm – Suitable for larger documents and parcels. Protective Bubble Lining – Cushioned interior helps protect items during transit. Peel & Seal Closure – Strong self-sealing strip for quick and secure packaging. Kraft Brown Paper Exterior – Durable, lightweight, and easy to write on. 2 Pack Envelopes – Great value pack for everyday mailing at home or in the office.

    1 in stock

    £1.10

  • 2 Size H Padded Envelopes

    Martello UK 2 Size H Padded Envelopes

    1 in stock

    Send larger items with confidence using the U. Mail® Size H Padded Envelopes, designed to help protect parcels during posting and transportation. Measuring 270 x 360mm, these large mailing envelopes are ideal for sending documents, folders, and larger items while helping to prevent bending or damage in transit. The internal bubble lining provides cushioning to protect contents throughout handling and delivery. Each envelope features a strong peel and seal closure, allowing quick and secure sealing without the need for additional tape or adhesives. The durable kraft brown paper exterior is lightweight, easy to address, and helps keep the envelope looking presentable during its journey. Supplied in a great value pack of 2, these padded envelopes provide a practical solution for everyday mailing needs. Key Features Size H – 270 x 360mm – Large envelope suitable for documents, folders, and parcels. Protective Bubble Lining – Cushioned interior helps protect contents during transit. Peel & Seal Closure – Strong self-sealing strip for quick and secure packaging. Kraft Brown Paper Exterior – Durable, lightweight surface that is easy to write on. 2 Pack Envelopes – Great value pack for home, office, or small business mailing.

    1 in stock

    £1.10

  • 4 Size J Padded Envelopes

    Martello UK 4 Size J Padded Envelopes

    1 in stock

    Send larger items securely with the U. Mail® Size J Padded Envelope, designed to help protect parcels during posting and delivery. Measuring 440 x 300mm, this large mailing envelope is suitable for sending documents, folders, clothing items, and other larger packages while helping to reduce the risk of damage in transit. The internal bubble lining provides cushioning to help protect contents throughout handling and transportation. Each envelope features a strong peel and seal closure, allowing for quick and secure packaging without the need for additional tape. The durable outer material is lightweight and easy to address, making it ideal for both personal and business use. Individually wrapped with a clear product information insert, this padded envelope can be sold individually or as part of an inner pack of 12, making it a practical and versatile mailing solution. Key Features Size J – 440 x 300mm – Large padded envelope suitable for bigger parcels and documents. Protective Bubble Lining – Cushioned interior helps protect contents during transit. Peel & Seal Closure – Strong self-sealing strip for quick and secure packaging. Individually Wrapped – Each envelope includes an insert label with product information. Versatile Packaging Solution – Suitable for individual sale or inner packs of 12 units.

    1 in stock

    £0.79

  • Size K Padded Envelope

    Martello UK Size K Padded Envelope

    1 in stock

    Send large parcels with confidence using the U. Mail® Size K Padded Envelope, designed to help protect items during posting and transportation. Measuring 470 x 350mm, this spacious mailing envelope is ideal for sending documents, folders, clothing items, and other larger packages while helping to prevent damage in transit. The internal bubble lining cushions the contents, offering added protection during handling and delivery. Each envelope features a strong peel and seal closure for quick and secure packaging without the need for additional tape. Individually wrapped with a clear product information insert label, this padded envelope is suitable for single retail sale or as part of an inner pack of 12 units. Lightweight yet durable, it provides a reliable and practical solution for everyday mailing needs. Key Features Size K – 470 x 350mm – Large padded envelope suitable for bigger parcels and documents. Protective Bubble Lining – Cushioned interior helps protect contents during transit. Peel & Seal Closure – Strong self-sealing strip for quick and secure packaging. Individually Wrapped – Includes an eye-catching insert label with product details. Retail Ready Packaging – Suitable for individual sale or inner packs of 12 units.

    1 in stock

    £0.89

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