Hydrapak Polar Surge Replacement Cap-Charcoal hex key Ultragrip rubberized temples and nose

Ultragrip rubberized temples and nose bridge for optimal fit and best grip even with heavy sweating

Optimized for Mountain Biking: Built to withstand rugged terrain and high braking pressure while maintaining consistent fluid flow

side angle and helmet inclination

Material: Hardened Steel Tools / Aluminum Body

Spider: 4-arm

Hydrapak Polar Surge Replacement Cap-Charcoal hex key Ultragrip rubberized temples and noseFeatures High flow Surge valve for fast hydration with minimal squeeze. Self sealing design prevents leaks and drips. One handed, spill resistant operation for active use. Removable components for easy cleaning. Specifications Threading: 63mm Compatibility: HydraPak Squeeze & Polar Bottles