CamelBak Chase Race 4 Hydration Vest - Men。Comes with a Crux® 1.5-liter hydration reservoir Fit is comfortable, secure and stable Breathable 3D Grid Mesh harness keeps you cool and comfortable—for even the longest and toughest races or rides Sleek and streamlined women-specific fit is specifically contoured to a woman\'s body Made from recycled nylon that\'s tough but lightweight, so you can stay prepared while still pushing your limits Command Center harness with dual adjustable sternum straps Integrated tool organization Stretch overflow pocket Elastic pump loop Sits above jersey pockets Reflective design Can be used for all your adventures, not just biking! I’ve run a trail race in this and it was great. Selling because I have too many packs!