Winter Gear Guide—The Best Boards, Skis & Gear
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Osprey Packs Four Season Insulation Kit


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  • Silver, One Size

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Four Season Insulation Kit

  • Insulation kit for your bladder system keeps water flowing in the cold
  • Heat-reflective coating keeps water cool during summer-month adventures
  • Fits most hydration systems up to 3L, allowing transfers between packs
  • Insulated hose protects against direct sunlight as well as snowfall
  • Perfect for long desert excursions and backcountry skiing missions alike
  • Zippered bite valve sleeve is insulated to prevent ice build-up over time
  • Item #OSP00DT

200HT nylon, heat reflective coating
3L reservoirs
17 x 8.3 x 2in
Claimed Weight
Recommended Use
backpacking, hiking
Manufacturer Warranty

Tech Specs

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