Hydrapak Polar Surge Ascent Insulated Water Bottle – 20oz Silver. Ease of squeeze, lasting insulation, and featuring HydraPaks high-flow Surge cap. This lean, clean bottle is a go-to for cycling or anyone who loves to move fast. The Surge caps design delivers a steady stream, then automatically seals for drip-free transport, and our Tri-Layer insulation holds the chill for hours. Its slim, ergonomic design is comfortable in your hand and slides right into your bikes cage.

• Max flow surge valve technology maximizes flow rate and self-seals to eliminate leaks and splatter during activity
• Engineered cool tri-layer insulation combines an external reflective heat shield with two layers of insulating foam to keep liquids cool
• Easy squeeze, flexible, ultra-light materials and the unique grip groove combine for a sure hold and high-flow squeeze
• Made with bicyclists in mind, the Breakaway bottle fits a variety of bike frame sizes and bottle cages
• Innovative Surge Cap is two pieces – cap and valve – and easy to clean. Simply twist, pull, and wash. Dishwasher safe

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