With 2.5L capacity for liquids this bag has more than enough to get you through your journey. On top of this the 16L compartments capacity allows you to bring everything you may need. With all this space Thule added a support strap in order to allow for the bag to sit comfortable on your back when on the bike. It can then be taken off when your walking in order to allow for comfortability both on and off the bike. The bag features a small side pocket for quick access to things such a a waterbottle or snack but also has a smaller top pocket which can store valuables such as phones or wallets. Within the main pocket there is several compartments in order to keep everything organised. This product is BlueSign certified, a prestigous sustinability certification.