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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
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10x12" Medium Grey Mailing Bags

Our 10x12" Grey Mailing Bags are designed for businesses that need a reliable and professional way to post their parcels. Whether you run an online clothing store, ship accessories, or send documents regularly, these medium-sized mailing bags deliver strength, protection, and cost efficiency.

Durable and Lightweight Packaging

Manufactured from premium-grade grey polythene, these bags provide excellent resistance against tears and punctures while keeping the overall weight low. Their self-seal adhesive strip ensures a quick and secure closure, saving time on packing while giving your parcels a neat, professional look.

The material is waterproof and opaque, ensuring your items stay private and protected from rain, dirt, and other environmental factors during transit. Many UK eCommerce sellers rely on this size for shipping T-shirts, small electronics, accessories, and lightweight retail goods.

Perfect for Online Retailers and Small Businesses

The 10x12" (250x300mm) mailing bag fits perfectly for medium-sized items that require protection without the bulk of a cardboard box. These bags are widely used by online sellers, boutiques, and postal fulfillment centers who need an efficient, low-cost packaging solution that still looks professional upon delivery.

They’re also ideal for subscription boxes, handmade products, or any eCommerce business wanting to reduce postage costs while maintaining reliability. The self-seal closure eliminates the need for extra tape, speeding up your dispatch process and improving packaging consistency.

Eco-Conscious Choice

At Storage & Removal Boxes, we understand how important sustainability is in modern packaging. Our grey mailing bags are made from recyclable materials, helping businesses reduce their environmental footprint while still benefiting from dependable protection. Once received, your customers can easily recycle the bags with other soft plastics.

Choosing these eco-friendly mailers supports a more responsible approach to packaging without compromising on performance or visual appeal.

Why Experts Prefer to Buy from Storage & Removal Boxes

Industry professionals across the UK choose Storage & Removal Boxes for quality packaging supplies that perform consistently and arrive on time. Our grey mailing bags are tested for durability and sealing strength, ensuring your parcels remain safe through the entire delivery process. We also keep our pricing transparent and competitive, offering great value whether you’re buying in small or bulk quantities.

With years of experience in packaging for removals, storage, and eCommerce, we stock products trusted by retailers, fulfillment warehouses, and courier companies alike. Our focus is always on providing the right balance between strength, sustainability, and affordability.

Common Uses

  • Shipping clothing, T-shirts, and accessories
  • Mailing books, documents, and small electronics
  • Sending promotional materials or product samples
  • eCommerce and subscription box packaging
  • General postal use for small to medium parcels

Key Features

  • Size: 10x12" (250x300mm)
  • Colour: Grey (opaque for privacy)
  • Material: Strong recyclable polythene
  • Waterproof and tear-resistant
  • Peel and seal closure for quick packing
  • Lightweight to save on postage costs

Expert Tip

For extra protection when sending delicate or fragile items, pair these grey mailing bags with bubble wrap or foam corners. This combination offers added cushioning while maintaining a clean, professional appearance for your brand.

Whether you ship a few parcels a week or run a busy online store, the 10x12" Grey Mailing Bags from Storage & Removal Boxes give you a dependable packaging option that keeps your deliveries secure, efficient, and eco-friendly.