Product Information 7L backpack with 2L water bag, light-medium/small size The innovative "X" closure system, with central quick release and 4 Velcro adjustments that cancel the oscillating effect, distributes pressure on the shoulder straps evenly, guaranteeing free and unhindered driving. Helmet carrying system on the backpack. Outer fabric coated in rubber to facilitate cleaning of the backpack using a wet sponge. Three-dimensional breathable mesh fabric in the area in contact with the back, with reflective shielding to keep the water bag cool. Front and rear reflective inserts. Customizable label for Biker identification. 4 fixing points for the race number table. INTERNAL CONSTRUCTION: Dedicated pockets for tools, keys, multitool, air chamber, and pump. Power pockets designed to accommodate bars/gels. Large 180x140mm internal storage/smartphone pocket, positioned in the most protected part of the backpack. Internal car key holder hook. WATER BAG: 2.0-liter capacity: allows for an average autonomy of 4 hours. Easy to fill and clean thanks to the large sliding bar that hooks to guarantee watertight integrity. Straw with an On/Off valve and removable tube with quick coupling for easy cleaning. Perfect for E-BIKE / MTB / GRAVEL use. More