The outer is made with fully waterproof fabric (but it is a weather resistant bag not a waterproof one) reinforced with an HD foam and HDPE liner, creating a sturdy bag that will not deform when attached to the bike. This means you don't need a front rack to use this bag! However if you want to load it heavy Hessonlabs from London created XL Bar Bag specific rack for it!
The main compartment is accessed by a large roll top closure creating a highly water-resistant expandable bag.
A further zipped pocket on the top of the bag with a secure key loop is perfect for your phone, wallet or other items that you need in easy access to it.
Finally two D rings on each side mean you can easily convert it from a bar bag to a shoulder bag, perfect for those trips away from your two-wheeled friend.