Water-resistant SBS zipper One-handed opening and closing with a magnetic snap that releases quickly Often found in car trailer ropes, this retractable, waterproof TPU handle is firm and scratch-resistant. Water-resistant substance The two-compartment zipper design allows you to efficiently arrange your accessories. Water cup position can be expanded in two directions, making storage simple. Conveniently, the front pocket has an elastic keychain inside. large storage space for cables, a cell phone, an iPad mini, etc. Foldable bottle/umbrella section