Rab Ascent LZ
Best four-season sleeping bag for cold-weather campers needing reliable warmth.
This is a serious, four-season workhorse built for damp, cold climates where staying dry is as critical as staying warm. While the generous mummy cut sacrifices a bit of thermal efficiency compared to tighter, race-fit bags, it gains significant comfort for those who prefer a little room to move while they sleep.
$360.00
Who it's for
- Mountaineers tackling high-altitude expeditions or severe winter conditions
- Backpackers needing rugged gear that withstands rough terrain
- Campers prioritizing consistent warmth without annoying cold spots
Who should skip it
- Ultralight hikers prioritizing pack weight and space savings
- Weight-conscious adventurers seeking maximum compressibility and efficiency
- Three-season campers needing a bag for milder temperatures
Performance breakdown
Thermal Efficiency
Trapezoidal boxwall construction maximizes loft and eliminates cold spots effectively.
Moisture Resistance
Hydrophobic down treatment offers reliable protection against damp, unpredictable conditions.
Sleeping Comfort
Wide mummy cut and angled foot box provide excellent roominess.
Draft Protection
3D neck collar and zip baffles create a secure, airtight seal.
Durability
Recycled Pertex Quantum shell balances lightweight performance with rugged longevity.
Packability
Substantial 900g fill makes it warm but moderately bulky to pack.
Key Specs
Brand
RAB
SKU
RABB-005059913032528
Gender
Unisex
Color
Oxblood Red
Size
Regular
Age
Adult
MPN
N/A
UPC
5059913032528
Ship Dimension
17 x 26 x 9 inches
Ship Weight
5.5lbs.
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