Designed to get you and your gear to the pool in comfort, the Fastpack 2.1 from Arena features an innovative space management system, with a large back compartment for a kickboard or other training equipment. Two side mesh pockets provide space for water bottles. While a reinforced, robust bottom compartment is designed for footwear. Mesh inserts improve air circulation for maximum ventilation, with a mesh-padded back panel and straps for exceptional comfort.