Hydrapak Polar Surge Ascent Insulated Bicycle Water BottlesEase of squeeze, lasting insulation, and featuring HydraPak's 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.

suitable for international electrical standards

Rise 60 (B1)

Claimed Weight: 101g

at the right width

providing high-performance crash defense at a minimal weight

Includes a removable mouthpiece ventilation cover to customize airflow

width: 25%

With 92% less packaging than four of our standard 1L bottles

providing anti-fog

Extreme Adjustability and Wheel Size Compatibility

} Size Guide

- Constructed using a standard freehub body (HG)