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Osprey Four Season Insulation Kit

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Keep water flowing in cold winter months and cool in the heat of the summer—this four-season insulated kit is ideal no matter the season. Featuring closed-cell foam, a heat-reflective coating, removable bite valve sleeve and easy-carry attachment loops.
Available in store: Check availability
Ordered before , delivered tomorrow! You got: 03:39 hours


Heat-reflective, closed-cell foam sleeve offers maximum insulation
Tailored insulated reservoir sleeve with attachment loops
Insulated hose protected from direct sunlight
Zippered bite valve insulation sleeve helps keep mouthpiece free of ice
Removable bite valve sleeve for summer use
Reservoir must be purchased separately