Engineered for ultra-marathons and fast-paced adventures where speed is the name of the game, the Distance 4 Hydration Vest blends our pack suspension technology with premium materials for a tour-de-force on the trails. Featuring our Stitch-less Edge Taping Technology for superior comfort, movement, and weight reduction, the Distance 4 Hydration Vest is equipped with an innovative over the shoulder Z-Pole carry system that can be easily accessed while on the go.The harness system is constructed with side stretch panels, which gives you a more secure ride while running. Dual flask pockets fit two BD HydraPak® SoftFlasks™ which are included with the vest, while zippered chest pockets, lumbar pocket, two main back pockets and small stash pockets provide ample storage for essential supplies.