HydraPak Polar Surge Bicycle Water Bottle - High Flow Fits Most Cages for Cycling and Sports (Silver Ascent, 600ml / 20oz)

THREE LAYER THERMAL WATER BOTTLE: The original insulated bicycle water bottle, 100% BPA free. Tri-layer insulation combines a reflective outer heat shield with layers of insulating foam to keep liquids cool. DESIGNED FOR BOTTLE CARTRIDS: Made by cyclists for cyclists, the Polar Surge bottle fits different frames and bottle cages. EASY COMPRESSION: Flexible, ultra-light materials paired with a unique groove to ensure a secure grip and high-flow compression. HIGH FLOW SELF-SEALING CAP: The backflow cap maximizes flow rate and automatically seals to eliminate spills and splashes. When opened it is leak-proof and closes with pressure to allow for leak-free transport. EASY TO CLEAN: The innovative Surge cap consists of two elements, cap and valve, which simply twist and pull for complete cleaning. Dishwasher safe. When we say 'easy', we mean just that.