• Slide lock opening with large opening accommodates ice cubes and easy cleaning after use
• BPA-free polyurethane film is protected by Microban® antimicrobial technology
• Hydration Reservoir utilizes radio frequency welded seam technology on seams and exit port to ensure a strong leak-proof bond
• Angled easy flow bite valve provides a constant flow-rate
• TPU tubing is odor free and taste free
• Volume markings on the front for making it easy to mix electrolytes or your favorite drink