14x21" Grey Mailing Bags (350x525mm)
If you’re looking for durable and reliable packaging for larger parcels, the 14x21" Grey Mailing Bags from Storage & Removal Boxes are the perfect choice. Designed for practicality and strength, these extra-large poly mailers are widely used by online retailers, warehouses, and individuals sending bulky items that need secure protection in transit.
Why choose our 14x21" Grey Mailing Bags
These mailing bags are made from high-quality, tear-resistant grey polythene that ensures parcels stay safe from moisture, dust, and handling damage. The opaque grey finish keeps contents private, while the strong self-seal adhesive strip offers a quick, tamper-proof closure — no need for extra tape.
- Size: 14x21 inches (350x525mm) – ideal for larger or multiple items
- Material: 55–60 micron LDPE for strength and flexibility
- Finish: Opaque grey for confidentiality and professional presentation
- Closure: Secure self-seal adhesive strip
- Waterproof & tear-resistant for reliable parcel protection
Perfect for eCommerce and retail use
These 14x21" grey mailing bags are a popular choice among online stores, clothing brands, and fulfillment centers across the UK. They’re ideal for sending jackets, hoodies, textiles, or multiple smaller items together in one parcel. Lightweight yet sturdy, they reduce postage costs while keeping goods safe during shipping.
Eco-friendly and efficient packaging
Our grey mailing bags are recyclable and help reduce packaging waste without compromising on performance. By choosing these eco-conscious mailers, you get a balance of environmental responsibility and dependable protection for your business or household shipping needs.
Why experts prefer Storage & Removal Boxes for mailing supplies
Industry professionals often choose Storage & Removal Boxes for their reliable and affordable packaging materials. We offer consistent quality, a wide range of sizes, and competitive bulk pricing – making it easy to find the perfect mailing solution for every item. Each product is tested to ensure it meets UK delivery standards, giving you confidence that your parcels arrive safely every time.
Key benefits
- Professional appearance for business shipments
- Secure adhesive strip for fast, no-fuss sealing
- Lightweight design saves on postage costs
- Recyclable material supports eco-friendly packaging goals
- Available in multiple sizes for flexible use
Whether you’re a home mover, small business owner, or established eCommerce seller, these 14x21" Grey Mailing Bags offer a dependable and affordable way to send parcels across the UK. Order online from Storage & Removal Boxes and enjoy fast delivery, trusted quality, and excellent value.
