Western Mountaineering Bison STS -40 Sleeping Bag
Price range: $1,081.99 through $1,112.99
| Color | Persimmon |
|---|---|
| Size | 6 FT Left Zip, 6 FT 6 IN Left Zip |
| Brand | Western Mountaineering |
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Description
Built for mountaineering on the world’s tallest peaks, the Western Mountaineering Bison STS -40 sleeping bag keeps you warm in the coldest places with 42 oz. of 850+ fill-power down insulation.
Features
- Weather-resistant Storm Shield shell protects against extreme wind and moisture, while maximizing inner breathability
- 42 oz. of 850+ fill-power ethically-sourced premium goose down creates 10 in. of heat-trapping loft for a rating of -40°F
- Storm Shield-lined insulated external hood ruff seals the bag from freezing temperatures while retaining internal heat
- V-Block side baffles provide phenomenal down control and improve insulation in colder temperatures
- 2 interlocking draft tubes seal the sleeping bag against cold wind and help retain inner temperature
- Offset insulated double draft tubes
- Durable, abrasion-resistant footbox lining is great for storing heavy boots and alpine equipment
- Comes with an ultralight stuff sack and a breathable mesh storage bag
- Weighs in at 4 lbs. 10 oz.
- EN Testing not available at these colder temperatures
Shipping & Returns
- Free shipping on every order in the US.
- Orders are processed within 1–2 business days (Monday to Friday) and ship via UPS or FedEx with tracking. Estimated delivery: 2–3 business days.
- 30-day returns. Contact us within 30 days of receipt to start a return.
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