DryCASE designs 100% waterproof cases and accessories to keep your. The Best Waterproof Floating Speaker: DryVIBES 2.0. Waterproof Backpacks. Enter Funnell, a backpack with a waterproof jacket that ejects out to protect you and your electronics from the rain. Designed by Make IT Happen, this innovative two-in-one system eliminates the hassl. The Pro Pack is 100 percent waterproof. the backpack harness and belts can be removed. I loaded the Pro…