The Ventura 40L Backpack has more than enough space for your kit, from walking boots to walking poles. With straps and pockets galore, padded and practical, the Ventura is ideal for your next trek. Dimensions: 57 (H) x 37 (W) x 18 (D) cm. Hydration Compatible - A compartment specifically for a hydration pack. A hydration bladder is not included Air Flow Back System - Tension suspended mesh back that allows air to flow freely between your back and your rucksack to keep your back cool and dry Compressions Straps - Used to reduce the bulk of the rucksack. Chest & hip straps - provide comfort and help to evenly distribute the weight of the bag Rain Cover - Found in a concealed pocket usually at the bottom, the rain cover folds out to protect your rucksack from the rain Lots Of Pockets.