Camelbak Thermal Control Kit

Camelbak Thermal Control Kit - Converts any CamelBak system for extreme winter and summer conditions. Includes Big Bite Valve mouthpiece, mouthpiece cover, insulated tube cover and 42" delivery tube.

Water stays cool in the summer and doesn't freeze in the winter
CamelBak® Thermal Control Kit includes insulated tube, CamelBak® Big Bite Valve and Bit Valve Cover

The hose is long, a lot longer than a stock hose. The thermal kit works well, the drink in the hose stays cooler longer. I taught the dust cap is big and I don't use it.