Fitletic Quench Retractable Hydration Belt Fits Most Phones, including iPhone 5 and Samsung Galaxy S4, Water Resistant Neoprene Pocket for phone and essentials Silicone Grippers to minimize bounce and Secure Tabs for additional bottle stability 2 Patented Retractable Zippered Holsters fit most bottles 12-24 oz (350  700 ml) Pull-Tension Bottle Secure Cords and Interior Pocket to secure ID & Cash. Small/Medium: 24"-36" | Large/X-Large: 29"-42" Fitletic manufacturers warranty is valid only if purchased from the following retailers: All Profits Donated to Leukemia & Lymphoma Society, Mountain River Design, Coalburn Outdoor, and Running Gear.