Camelbak Crux Insulated Tube

The Camelbak Crux Insulated Tube is a simple add-on for hydration reservoirs that helps keep the water in your drinking line closer to its original temperature. Wrapped around a standard hydration hose, it’s designed for use with backpacks and hydration packs in the Camelbak Crux series and other systems that accept a 2 cm-diameter tube.

At roughly 108 cm long and 2 cm wide, this insulated sleeve fits most hydration packs without adding much bulk. Made from polypropylene, it adds a layer of thermal protection along the length of your hose, so you’ll notice cooler sips on hot outings and less chance of a frozen line when the temperature dips. The slim profile makes it easy to slide into existing tube sleeves or secure alongside your pack’s shoulder straps.

Polypropylene is a lightweight, food-safe plastic known for its durability and resistance to chemicals and odors. Its relatively low thermal conductivity means it slows heat transfer between your drink and the outside air, helping maintain the water’s temperature until you reach the bite valve.