Keep your water flowing freely, even in the most harsh conditions. The Crux Thermal Control kit takes insulation to the next level so your tube and valve stay ice-free. Designed for reservoirs with the Quick Link system, this cold-weather accessory will extend the range of use your hydration pack during all outdoor adventures.

Features:

- Insulated Tube: Protects the flow of your fluids in cold conditions
- Freeze-Proof Valve: Integrated cover keeps ice from forming in bite valve
- Fits Reservoirs with Quick Link System: Keep your Crux working hard year-round with this easy upgrade