Osprey Four Season's Insulation Kit

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. Fits reservoirs up to 3 liters. *Compatible with Hydrapak reservoirs produced after 2013.

DIMENSIONS: 16.7H X 8.27W X 1.77D IN. / 42.5H X 21W X 4.5D CM

WEIGHT: 0.45 LBS / 0.2 KG