1. Dry bag with special locking system; 2. PVC,fabric maerial or TPU material, lightweight, environment-friendly 1.Strong TPU film welded;2. Special folding-up system at the opening;3. Poison-free and environment-friendly;4. Light and most compact;5. Size: 40 cm width x 58cm Height; 30cmx54cm; 37cmx60cm or OEM size. Dry bag