This dry bag is 100% waterproof and made from a tough, wipe-clean fabric with wide welded seams for enhanced durability. Totally submergible, you can even take it with you while swimming. It has a zip-fastened internal pocket for valuables and a detachable padded strap that makes it even easier to carry. It is also ideal for essentials such as keys, a smartphone, a lunchbox or even a spare top. The reflective logo also offers improved visibility in low light.