Nathan VaporShadow 2-Liter Hydration Vest High capacity race vest designed to fit a women's torso with highly breathable wall mesh shoulder straps Dual stabilization system compresses bladder and load and the insulated bladder pocket blocks the transfer of body heat to liquid contents Load lifter system keeps the bag contents up and close to the body Multiple zippered compartments and stretch mesh stash pockets for organization and increased capacity Reflective trim, pill pockets, trekking pole clips and smart phone pockets complete the vest Kindly click the Main Image and refer the Last Image for sizing details