Chest protector, backpack, and hydration pack all in one! The Moto 4.5 Hydra Chest Protector offers CE-certified impact protection for the chest and back. The multi-plate articulated design ensures maximum comfort by replicating the body's natural movements. The AirLine back ventilation ensures optimal airflow, keeping you cool even on long rides. With a 10-liter carrying capacity and a 2.0-liter hydration bladder, you can take everything you need for a full day's adventure. The CleanTech hydration bladder features a central baffle to reduce liquid sloshing, and the feed tube can be routed over the shoulder or under the arm. The storage compartment includes dedicated tool pockets, complete with a waterproof phone case. The Moto 4.5 Hydra Chest Protector is designed to fit with or without the Leatt neck brace.