The Sea to Summit TPU Guide Map Case. Made from TPU, totally welded construction and a super strong Ziploc closure to provide fully waterproof and dust proof 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 of the Sea to Summit TPU Guide Map Case 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