The Atomic A Bag is their most streamlined boot bag, a durable, spacious tote that’s coated with a stain and water-resistant treatment to ensure longevity. A roll-top opening can flex to whatever volume you need, while a detachable boot board on the bottom of the bag helps stabilize the shape and removes easily for washing. If you need a general sports bag, this is a great option for that, too. Features: Roll top volume adjustment: The roll top opening allows for adjusting the volume depending on what you need each day. Removeable Boot Bag: A waterproof tarpaulin inner-bag that sits neatly inside your boot pack, so you can store your boots without getting your main pack wet and dirty. The inner-bag is removable for easy cleaning, and thermo-insulated to retain the heat from your boot-heating element.