With a welded construction and a super reliable roll-top closure with triple fold and double hook-and-loop fastener, the Sea To Summit accessory case provides a fully waterproof and dustproof performance.  Whether your paddling, wet-weather backpacking or travelling, keep your personal possessions secure, clean and dry.  Meets IPX8 testing standards of being waterproof at 10 meters for 1 hour  Watertight roll-top closure  Top corner anchor points  Convenient neck strap included  Flexible and crease resistant  Freezeproof”will not crack  High strength, PVC-free TPU material  A touch-screen device will work inside the case  Medium: 6.5" x 5"