Lift, run, hike, climb and crawl while staying hydrated with the FIRST weighted vest and a removable hydration pack. Hikers and climbers: Are you headed for a hike but want to carry around your water jug, camera, tripod and snacks without a heavy backpack? 12 compartments and a removable hydration pack (not included) Beginner to weight lifting? 4 sand pouches, weighing at 2.5LBS each (included) Intermediate - advanced weight lifting: Two weight metal plate carrier underneath the front and back panel (not included). 2XSR Training Vest fully disassembles into 4 panels within seconds. Specifications: Water repellent 1000D Nylon Military grade Velcro Metal rings Metal buckles Double layer of foam padding with breathable mesh Functionalities: Water repellent for underwater training without any damage Four exterior compartments to add weight or to hold personal belongings Three mini compartments in six compartments to hold small metal plates Two exterior compartments to hold large weighted plates (up to 60LBS each) Two interior pouches for personal belongings One rear compartment to hold a hydration pack Two woven tape straps to hold headphones or a hydration tube in place Metal buckles and adjustable working straps for quick release for convenience to put on or take off without hesitation 3 mental rings for pulling and dragging exercises (Sand Training Bag recommended). Countless Molle around the vest for attachments 2XSR is the only company that provides versatile, durable and plastic free fitness products, built for you and built to last.