Advanced Aerogel Insulation: Keeps water cold up to four times longer than standard bottles Optimized Cage Fit: Securely fits most bike bottle cages for a stable ride on any terrain Effortless Hydration: Easy to squeeze design with high flow self sealing cap for quick, spill free sips Pure Taste Technology: Made from BPA free materials for clean, refreshing hydration Easy to Clean: All parts separate for thorough cleaning after long, hot rides