DetailsWe've done it again, maximum features with minimal weight. Air Support(TM) Back Panel with Body Mapping Technology will help you keep cool. Your water bottle is centered in the middle of the belt for easy access with either arm. Need a new water bottle? We've got you: Podium Dirt Series 21 oz Water Bottle is included. Reflective features help you be seen on and off the trail. Minimalism to the max!Key Features Podium Dirt Series 21 oz included Air Support Back Panel: Designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your back Air Support Back Panel: Designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your back Secure Zippered Pocket: Keep essentials safe and easy to access Integrated Carry Pockets: Keep your tools and repair kit organized Elastic Pump Loop Reflective Accents: For better visibility in low light environments Dimensions and Weight 44.5 cm x 6 cm x 22 cm 260 g Material Composition39% Woven Nylon, 34% Woven Poly, 7% Knitted Nylon, 20% Knitted Poly.