{"product_id":"grey-mailing-bags-14x21-inch-100-pack-self-seal-poly-mailers-waterproof","title":"Grey Mailing Bags 14x21 Inch 100 Pack – Self-Seal Poly Mailer Bags 405x533mm, Waterproof \u0026 Tear-Proof Postage Bags for Clothing, Parcels \u0026 Courier Shipping","description":"\u003ch2\u003eAbout These Grey Mailing Bags\u003c\/h2\u003e\u003cp\u003eSend parcels with confidence using these Large Grey Mailing Bags in 14 x 21 inch (405 x 533 mm). This 100-pack of self-seal poly mailer bags is manufactured from premium 50–60 micron material, making them robust, lightweight, waterproof, and tear-resistant. Each bag features a secure self-adhesive strip for quick, tamper-evident sealing — no tape required. The 14 x 21 inch size is ideal for posting clothing, accessories, documents, and lightweight parcels. Widely used by Vinted, eBay, Etsy, Amazon, and Shopify sellers, these grey plastic postage bags are an essential for any home or business mailing setup.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e📦 \u003cstrong\u003e100 Pack Value\u003c\/strong\u003e – Bulk supply ideal for regular home or business shipping\u003c\/li\u003e\n\u003cli\u003e🔒 \u003cstrong\u003eSelf-Seal Adhesive Strip\u003c\/strong\u003e – Secure, tamper-evident closure with no tape required\u003c\/li\u003e\n\u003cli\u003e💧 \u003cstrong\u003eWaterproof \u0026amp; Tear-Proof\u003c\/strong\u003e – 50–60 micron material protects contents in all weather conditions\u003c\/li\u003e\n\u003cli\u003e📏 \u003cstrong\u003e14 x 21 Inch (405 x 533 mm)\u003c\/strong\u003e – Large size suitable for clothing, accessories, and documents\u003c\/li\u003e\n\u003cli\u003e♻️ \u003cstrong\u003eRecyclable Material\u003c\/strong\u003e – Eco-conscious packaging option for sustainable sellers\u003c\/li\u003e\n\u003cli\u003e👔 \u003cstrong\u003eIdeal for Clothing \u0026amp; Soft Goods\u003c\/strong\u003e – Perfect size for folded garments, accessories, and soft parcels\u003c\/li\u003e\n\u003cli\u003e🛍️ \u003cstrong\u003eEcommerce Ready\u003c\/strong\u003e – Used by Vinted, eBay, Etsy, Amazon, and Shopify sellers\u003c\/li\u003e\n\u003cli\u003e⚡ \u003cstrong\u003eAll-Season Adhesive\u003c\/strong\u003e – Permanently seals once closed, even in cold or damp conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e14 x 21 inches (405 x 533 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e100 bags\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eGrey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial Thickness\u003c\/td\u003e\n\u003ctd\u003e50–60 micron (50MU–60MU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosure\u003c\/td\u003e\n\u003ctd\u003eSelf-seal adhesive strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTear-Resistant\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecyclable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: Are these suitable for posting clothing on Vinted or eBay?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 14 x 21 inch size is one of the most popular formats for posting folded clothing, accessories, and soft goods on Vinted, eBay, Etsy, and other resale platforms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Do these bags need tape to seal?\u003c\/strong\u003e\u003cbr\u003eA: No. Each bag has a built-in self-adhesive strip that creates a secure, tamper-evident seal without any tape. Once sealed, the bag is permanently closed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Are these waterproof?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 50–60 micron poly material is fully waterproof and tear-resistant, protecting your parcels from rain and handling during transit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Are these recyclable?\u003c\/strong\u003e\u003cbr\u003eA: Yes. These mailing bags are made from recyclable material, making them a more sustainable packaging choice for eco-conscious sellers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What can I fit in a 14 x 21 inch mailing bag?\u003c\/strong\u003e\u003cbr\u003eA: This size comfortably fits folded t-shirts, jeans, dresses, accessories, books, documents, and other lightweight flat items. It's one of the most versatile sizes for general parcel posting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Are these suitable for Royal Mail or courier services?\u003c\/strong\u003e\u003cbr\u003eA: Yes. These bags are compatible with Royal Mail, Evri, DPD, and other major UK courier services. Always check the courier's size and weight guidelines before posting.\u003c\/p\u003e\u003ch2\u003eFast UK Shipping\u003c\/h2\u003e\u003cp\u003eShips from our UK warehouse. Free delivery in 1–4 business days. Order today and keep your parcels protected and professional.\u003c\/p\u003e","brand":"ShopVora UK","offers":[{"title":"100 Pcs","offer_id":47702828482738,"sku":null,"price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/3831\/9794\/files\/151a4edc-c549-4426-9071-07c8505e9a36_1600x1600.jpeg.format.jpg?v=1783763689","url":"https:\/\/shopvorauk.com\/products\/grey-mailing-bags-14x21-inch-100-pack-self-seal-poly-mailers-waterproof","provider":"ShopVora UK","version":"1.0","type":"link"}