Fully adjustable elastic stretch waistband for a customized, comfortable no-bounce fit and Velcro closure * Revenge holster design provides for single handed entry and exit * Removable pocket with zipper for gels, keys, cash or up to iPhone sized electronics * Ventilated Air Flow padding system wicks moisture away and keeps you cool * Three ergonomic, leak proof, dishwasher safe and BPA-free 7 oz bottles included