--- product_id: 143520467 title: "9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack)" brand: "shop4mailers" price: "£17.06" currency: GBP in_stock: true category: "BISS" url: https://www.desertcart.co.uk/products/143520467-9-x-12-glossy-white-plastic-self-seal-poly-mailer store_origin: GB region: United Kingdom --- # Durable & Lightweight Privacy & Security Tamper Evident Seal 9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) **Brand:** shop4mailers **Price:** £17.06 **Availability:** ✅ In Stock ## Summary > 📦 Ship with Style and Security! ## Quick Answers - **What is this?** 9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) by shop4mailers - **How much does it cost?** £17.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/143520467-9-x-12-glossy-white-plastic-self-seal-poly-mailer) ## Best For - shop4mailers enthusiasts ## Why This Product - Trusted shop4mailers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Quick & Secure:** One-step adhesive seal for fast, tamper-evident closure. - • **Stylish Variety:** Choose from a wide range of fun designs to match your brand. - • **Weather Warrior:** Tear, puncture, and moisture resistant for all conditions. - • **Ultimate Privacy:** Opaque polyethylene film ensures confidentiality. - • **Cost-Effective Shipping:** Lightweight design reduces shipping costs significantly. ## Overview These 9 x 12 Glossy White Plastic Self Seal Poly Mailers are designed for secure and efficient shipping. Made from durable, opaque polyethylene, they provide privacy and protection for your items. With a tamper-evident adhesive seal, these mailers are lightweight yet tough, making them ideal for shipping apparel and other non-fragile goods. Available in a variety of fun designs, they not only keep your items safe but also add a touch of personality to your shipping process. ## Description Size:100 Pack 9x12 inches and 2.17 mil thick poly mailing envelope bags. Excellent Quality. Self-sealing for protected packages! Water and weather resistant. Privacy guaranteed by silver inner layer. Flexible superior adhesive allows for over-stuffing. Shipping quality approved. UPS, FedEx & USPS accepted. Fast and tactful shipping! Buy with Confidence! ## Features - PROVIDES PRIVACY & CONFIDENTIALTY – Made with opaque polyethylene film, rather than paper, to provide top of the line security. Our flexible mailers have a solid exterior and black lining interior for extra concealment. - TAMPER EVIDENT & QUICK – High strength, one step adhesive seal strip process to securely seal the mailers. The sticky strip provides a tight bonding closure which also keeps out dust, dirt, and liquid. - LIGHT-WEIGHT & DURABLE – Tear, puncture, and moisture resistant envelope made to withstand harsh one-way trips in excellent condition. The go-to poly bag for shipping clothes, soft goods and other non-fragile items. - COST & SPACE SAVING - Tough but light weight which helps keep shipping costs low. Also saves space in your facility to store other items. - VARIETY – We have a wide assortment of mailers and shipping supplies available in our storefront. White/Grey, Pink, Polka Dots, Thank you, Flamingos, Rose, Pineapple, Hearts, and more! ## Images ![9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) - Image 1](https://m.media-amazon.com/images/I/31Ep7IaVMJL.jpg) ![9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) - Image 2](https://m.media-amazon.com/images/I/51w5F2lrx1L.jpg) ![9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) - Image 3](https://m.media-amazon.com/images/I/41ekPms6lCL.jpg) ![9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) - Image 4](https://m.media-amazon.com/images/I/41t4oEQ54iL.jpg) ![9 x 12 Glossy White Plastic Self Seal Poly Mailer Flat Bags Waterproof Shipping Envelope 2.17 Mil for Apparel, Clothes, Shirts, Books – Permanent Adhesive Seal (100 Pack) - Image 5](https://m.media-amazon.com/images/I/41RyjegWsuL.jpg) ## Available Options This product comes in different **Size** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/143520467-9-x-12-glossy-white-plastic-self-seal-poly-mailer](https://www.desertcart.co.uk/products/143520467-9-x-12-glossy-white-plastic-self-seal-poly-mailer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-20*