The Hydration Moto HydraDri WP 2.0, a fully taped, waterproof, lightweight outer shell that will ensure the contents of your bag stays dry! Leatt uses a 2.0L Cleantech vertical hydration bladder with an auto shut-off bite valve, feed tube routing can be either over the shoulder or under the arm and cargo storage is 5.0L. The lightweight unique chest harness system is fully adjustable across the chest and around the waist that ensures a rock-solid fit, with Airline back ventilation that helps keep airflow between the bag and your back, sweat is kept to a minimum. There is a removeable tool roll included to store the essentials for getting you out of trouble, various storage pockets including one for a mobile phone that has a touch screen function and even a safety whistle! 2.0L Hydration and 5.0L Cargo. Fully-welded, waterproof Lite outer shell. Unique chest harness for a solid riding fit. Chest storage pockets, including a mobile phone pouch with touch screen function. CE tested and certified as impact protection: - Back EN1621-2 Level 1 Lightweight helmet carrier system for full-face or/and MTB helmet. Dual hydration tube exit for two-way routing – over the shoulder or under the arm. Removable tool card. Safety whistle included. Heat reflective inner back panel to keep liquid cool or hot. Stretch mesh bladder pocket. Optimal AirLine back ventilation. Cargo straps for jacket or/and protectors. Optimized fit with or without a Leatt® neck brace. Sizing: One Size - XS-XXL