Poly Bag Mailer 10 x 13 Glossy Multi Design Envelopes | Premium Plastic Mailing & Courier Bags Ship in style with our 10 x 13 Glossy Multi Design Poly Bag Mailers. Made from durable 2 mil polyethylene, these lightweight, tear-resistant, and self-sealing envelopes are perfect for clothing, accessories, and other non-fragile items. Add a touch of gratitude and sophistication to every package while saving on postage costs. Key Features : • Size: 10 x 13 inches, perfect for medium-sized items • Made from durable 2 mil polyethylene material • Tear, puncture, and damage resistant • Lightweight design reduces shipping costs • Strong self-sealing adhesive strip for secure closure • Glossy “Thank You” multi-design for stylish packaging • Ideal for shipping clothing, accessories, and other non-fragile items