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 Breathable thermafoam backing wicks moisture away and keeps you cool Two ergonomic, leakproof, dishwasher safe and BPA-free 7 oz bottles included