Made from TPU (thermoplastic polyurethane), totally welded construction and a super strong Ziploc® closure to provide fully waterproof and dustproof performance. The PVC-free TPU material is strong, durable, flexible and resistant to UV and extreme cold – so it can be folded numerous times for pocket storage without cracking or discoloring. Designed with a detachable neck strap and corner anchor points for versatility.Features:• Lightweight, high performance design• Totally welded construction - no stitches• Individually tested - water and dust proof• Super strong Ziploc® closure• Anchor points on corners for versatile attachment• Detachable neck strap• Flexible and crease resistant - can be folded to fit in a pocket• UV resistant for superior long lasting clarity• Abrasion resistant, high strength, PVC free, TPU materialSpecs:Size Width Height/Depth Weight S 21.2cm 30.2cm 51g M 28.2cm 33.2cm 78g L 33.2cm 43cm 102g