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Grey Mailing Bags

Durable grey mailing bags with peel-and-seal closure, designed for secure shipping and e-commerce environments. Available in a range of sizes and built to guard contents from moisture and tampering — ideal for online retailers, home movers and students nationwide.

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2000 x Small Grey Mailing Bags – 4x6" (102×152mm)

Compact and lightweight, our 4x6" Grey Mailing Bags are perfect for sending small items securely and affordably. Made from durable, waterproof material, these mailing bags keep contents protected from moisture, dust, and tampering during transit.
£31.99

2000 x A5 Grey Mailing Bags – 6x9" (165×230mm)

These A5 Grey Mailing Bags (6x9 inches) are perfect for sending small parcels, clothing, books, and accessories securely. Made from durable, tear-resistant material, they’re lightweight yet strong enough to protect your items during transit. A reliable choice for eCommerce sellers and individuals who need dependable, waterproof postal packaging.
£43.98

1000 x A4 Grey Mailing Bags – 9x12" (230x300mm)

These A4 grey mailing bags (230x300mm) are the perfect choice for posting small parcels, clothing, and documents safely and securely. Made from strong, tear-resistant material, they keep contents protected from moisture and rough handling during delivery. Ideal for eCommerce sellers, online retailers, and anyone looking for reliable everyday mailing solutions.
£35.95

1000 x Medium Grey Mailing Bags – 10x12" (250x300mm)

Our 10x12" Medium Grey Mailing Bags are ideal for shipping clothing, accessories, and small parcels safely and neatly. Made from tough, waterproof polythene, they keep contents protected from dirt, moisture, and handling damage. A perfect, lightweight solution for online retailers and small businesses across the UK.
£41.95

1000 x Durable Grey Mailing Bags 10x14" (250x350mm)

These 10x14" grey mailing bags are a popular choice for online retailers and small businesses sending medium-sized parcels. Made from tough, waterproof material, they keep your items protected in transit while maintaining a professional, clean look.
£44.95

1000 x Strong Grey Mailing Bags 12x14" (300x350mm)

Our 12x14 inch Grey Mailing Bags are a smart choice for businesses and home shippers who need reliable packaging for medium parcels. These durable plastic mailers keep your items safe from moisture and handling during transit. Designed to be strong yet lightweight, they help you pack securely while keeping postage costs low.
£51.95

1000 x Grey Mailing Bags – 12x16" (305x405mm)

These 12x16" Grey Mailing Bags are perfect for sending medium to large parcels safely. Designed from tough, waterproof polyethylene, they keep your items protected from dirt, moisture, and tearing during transit. Ideal for online retailers, small businesses, and everyday postage.
£56.95

1000 x Grey Mailing Bags – 12.5x17" (320x440mm)

Our 12.5x17" grey mailing bags are ideal for sending medium to large parcels safely across the UK. Made from tough, tear-resistant material, these waterproof bags keep your products secure and professional-looking in transit. Perfect for eCommerce retailers, clothing stores, and online sellers needing reliable packaging.
£69.95

500 x Grey Mailing Bags – 13x19" (330x483mm)

These 13x19" Grey Mailing Bags are designed for secure, weather-resistant parcel shipping. Made from strong, tear-proof material, they keep your goods safe from moisture and damage during transit. Perfect for sending clothing, soft goods, or medium-sized retail items efficiently and professionally.
£37.99

500 x Grey Mailing Bags – 14x16" (350x400mm)

Protect your parcels with our 14x16" Grey Mailing Bags — a popular size for shipping medium parcels, clothing, and online retail orders. Made from durable, tear-resistant material, these bags offer reliable protection from moisture and handling during transit.
£35.95

500 x Grey Mailing Bags – 14x21" (350x525mm)

These 14x21" Grey Mailing Bags are ideal for shipping larger or bulkier items like clothing, cushions, or soft goods. Made from tough, waterproof polythene, they keep contents secure and protected during delivery. Perfect for retailers, eCommerce sellers, and anyone posting larger parcels.
£49.99

500 x Grey Mailing Bags – 16x21" (406x533mm)

Send bulky or oversized parcels securely with our 16x21 inch heavy-duty grey mailing bags. Designed for strength, waterproof protection, and reliable performance, these large grey mailers are perfect for eCommerce, postal, and courier shipments. A trusted choice for UK retailers and home movers alike.
£59.95

500 x Grey Mailing Bags – 17x24" (425x600mm)

These 17x24" Grey Mailing Bags are built for strength and protection. Designed from thick, waterproof polythene, they’re ideal for posting bulky or heavy items safely across the UK. Lightweight yet tear-resistant, they help you ship confidently without adding unnecessary weight or postage costs.
£66.95

250 x Grey Mailing Bags – 21x24" (533x610mm)

These 21x24" grey mailing bags are ideal for sending large parcels, bulky clothing, and lightweight retail items securely. Made from strong, waterproof polythene, they protect against tears and moisture during transit, keeping your parcels safe and professional-looking.
£41.88

250 x Jumbo Grey Mailing Bags 21.5x29.5" (550x750mm)

These jumbo grey mailing bags are perfect for sending large, bulky, or irregularly shaped parcels safely and securely. Made from strong, tear-resistant material, they keep your items protected from dust and moisture during transit. Ideal for retailers, eCommerce businesses, and anyone shipping oversized goods.
£47.38

250 x Heavy-Duty Grey Mailing Bags – 28x34" (711x864mm)

These large 28x34" grey mailing bags are built for bulky or awkwardly shaped parcels that need strong, weather-resistant protection during shipping. Made from durable polyethylene, they keep contents safe from moisture and tearing while remaining lightweight and easy to seal. Ideal for retailers, warehouses, and eCommerce sellers looking for reliable, professional-looking packaging.
£77.40

100 x Extra Large Grey Mailing Bags 34x42" (864x1067mm)

Our 34x42" grey mailing bags are made for sending oversized or bulky parcels safely across the UK. Built from durable, waterproof polythene, they protect your items from dirt, moisture, and handling damage during transit. Ideal for retailers, movers, and eCommerce sellers who need reliable, extra-large packaging.
£47.52

100 x Extra Large-Jumbo Grey Mailing Bags 48x50" (1219x1270mm)

Need to post or store something big? Our jumbo 48x50" grey mailing bags are built for oversized parcels, textiles, bedding, or bulky eCommerce items. Made from strong waterproof polythene, they keep your products safe, dry, and professional-looking during transit.
£63.72

Reliable Grey Mailing Bags for Shipping, Storage and Dispatch

When you’re running an online store, preparing student parcels or organising a home move, the right packaging helps keep things simple and secure. At Storage & Removal Boxes we offer grey mailing bags that combine strong materials, smart design and value-conscious pricing — so your parcels arrive intact and look professional.

What Are Grey Mailing Bags?

Grey mailing bags are opaque polythene or LDPE bags designed for postal and courier use. They often feature tamper-evident seals, strong film construction (e.g., 50-60 micron thickness) and a clean outer appearance. Many suppliers list sizes from 105×160mm through to 600×900mm and beyond.

Why They Are Useful for E-Commerce & Movers

Whether you’re dispatching a hoodie, shipping sensitive documents, sending student flat leftovers or relocating to a new house, grey mailing bags offer key advantages:

  • Opaque exterior: Shields contents from view and gives a clean professional look.
  • Strong materials: Many bags use 60 micron film to resist punctures and tears.
  • Self-seal closures: Quick to pack with peel-and-seal strips or adhesive lips — reduces need for tape and speeds up dispatch.
  • Cost-effective: Lightweight compared with boxes and bulk sizes available help keep postage low.

Range & Features at Storage & Removal Boxes

We carry a broad range of grey mailing bags so you can pick the size and specification that fits your needs:

  • Sizes from small (for accessories or documents) to large (for clothing or multiple items) — matching stock-lists from major UK suppliers.
  • Opaque grey finish to maintain privacy and make branding easy.
  • Peel-and-seal or permanent adhesive lip for secure closure.
  • Recycled or recycled-content film options available — for environmentally conscious buyers.
  • Bulk and multi-pack options for frequent dispatchers or movers.

How to Choose the Right Grey Mailing Bag

Here are some quick tips when selecting your mailing bags:

  • Size matters: Ensure the width and length of your parcel fit the bag comfortably with minimal excess. For example, a 10” × 14” (250×350mm) size is common for standard parcels.
  • Strength: If you’re sending heavier items or clothes in bulk, choose bags with thicker film (e.g., 60 micron).
  • Closure type: Peel-and-seal is faster and tidier; check that the adhesive holds in the conditions you ship in (cold warehouse, rain routes etc).
  • Eco credentials: If sustainability matters, look for recycled-content or fully recyclable film.

Why Storage & Removal Boxes is the Top Choice for Grey Mailing Bags

When you select grey mailing bags from us you’re choosing a trusted partner that understands both home-moves and e-commerce shipping. We offer nationwide UK delivery, clear sizing and material specs, and a curated selection that balances cost, strength and ease of use. Whether you’re preparing your new flat in Manchester, sending clothing as a retailer in London, or organising storage supplies across Birmingham, we’ve got you covered.

Packing & Shipping Advice

Here are a few useful expert tips:

  • Press out excess air before sealing — flatter parcels scan and stack better with couriers.
  • When sending heavier items, choose a bag size that avoids excess slack — slack increases risk of catching or tearing.
  • Label clearly and reseal any padding if needed so the bag is stable and secure.
  • For storage use: if you’re packing items in grey mailing bags for short-term storage, stack them flat and ensure the seal is facing up or into a protected area.

Selecting the right grey mailing bags makes shipping and storage one less worry. With the correct size, the proper closure, and the right material you’ll be ready to pack, seal and ship with confidence. Trust Storage & Removal Boxes to deliver value, quality and convenience across the UK.