Alpine ApIII Sleeping Bag: -4F Down
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Nothing takes the steam out of your engine more than a restless night, so Sea To Summit designed the Alpine ApIII -4 Degree Down Sleeping Bag to both repel outside moisture and prevent condensation build-up on those epic alpine expeditions. A breathable, downproof 3D Nano Shell with Nano DWR and an interior barrier ensure its plentiful 850-fill Ultra-Dry Down stays lofty and toasty-warm, even at high-altitude base camp. Because you want to be rested for that glorious peak.
Details
- This autumn-winter -4F-rated bag was made for base camp, winter backpacking, snow camping, ski touring, alpine climbing, and epic expeditions
- High-density, downproof 3D Nano Shell 20D polyester with DWR coating repels water at its durable exterior and condensation on the inside
- Almost-magical Ultra-Dry Down 850+ goose down repels moisture, retains loft, dries quickly, and fights bacteria and microbial growth for dry, fresh comfort
- Differential-cut mummy with 3D sidewalls, offset baffles, side-block baffle, and tapered footbox gives wiggle room with lean-fit warmth
- Regular length comfortably accommodates a person six feet tall; long length extends to fit someone six-foot-eight
- Cushioned internal hood drawcord with dual adjustment hugs your head with downy warmth
- Zip draft tube with anti-snag seals out the cold for optimal cozy comfort
- Neck draft tube with dual elastic adjustment add to the weather-denying barrier
- Two-way side zip provides convenient open-close and venting
- Weighs a light 3lb 8oz (regular) or 3lb 15oz (long) for easy portability
- Compresses in bag from 15 liters to 5 liters; you’ll be tempted to take it everywhere you go
- Medium internal zippered pocket secures essentials at your side
- Includes lightweight Ultra-Sil compression bag, mesh storage cell, and laundry bag for easy maintenance and convenience
- Item #STS0169
- Material
- 3D NanoShell (20D polyester)
- Insulation
- 850-fill Ultra-Dry Down (95% European goose down, 5% feathers)
- Waterproofing
- NanoShell face
- Shape
- mummy
- Draft Collar
- yes
- Max User Height
- [regular] 6 ft, [long] 6 ft 7 in
- Shoulder Circumference
- [regular] 59.84 in, [long] 61.42 in
- Hip Circumference
- [regular] 51.18 in, [long] 53.54 in
- Foot Circumference
- [regular] 40.94 in, [long] 42.13 in
- Stuff Size
- 15 - 5 L
- Stuff Sack
- yes
- Storage Sack
- yes
- Degree
- -4 F
- European Norm Comfort Rating
- 10 F
- European Norm Lower Limit Rating
- -4 F
- Claimed Weight
- [regular] 3 lb 8 oz, [long] 3 lb 15 oz
- Recommended Use
- base camp, winter camping, alpine climbing, expeditions
- Manufacturer Warranty
- lifetime
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