The ultimate winter hydration pack on the market. Uses breakthrough technology for winter hydration! Designed for winter adventures in extremely cold weather, the anti-freeze system and rescue-gear with fast-access compartment will change the way people hydrate in cold weather.

Our most successful design, featuring the Wide Opening Access Widepac^TM. Offering Source's ultimate hydration technology and innovative design at an attractive price. Allows rider and outdoors athletes to be bottle-free and improve their performance.

Smart, innovative and attractive! Breakthrough technology in winter hydration with an anti-freeze system that will change the way people hydrate in cold weather. Can be worn under a jacket as well. Similar to the Descender 2 with an extra pocket.

Smart, innovative and attractive! A breakthrough technology in winter hydration! This anti-freezing system will change the way people hydrate in cold weather. Can also be worn under a jacket.

Keeps your tube and valve insulated in extreme cold weather.

Turn your summer hydration systems to a winter system by replacing the tube with a winter insulated.

Turns your summer hydration systems to a winter system by insulating the complete bladder and tube.
2L/ 3L.