This is a Rock Bros waterproof bag with phone holder. It has seamless zippers and extra rain cover to keep the phone dry in all conditions. It is durable and stable once on the bike keeping everything secure and safe. The phone protector also has a sun visor so that you can still see the phone even in really bright conditions. There are also general storage pouches for gloves, hat, sunglasses etc. It is very easy to install and can quickly be taken off using the Velcro straps. The straps keep it securely in place on different types of bike which doesn’t move even on bumpy roads.