When and where should the Rab Alpine 400 Long be used?

This sleeping bag is ideal for spring trips in the mountains, whether trekking in the Alps, bivvying at altitude, or setting up camp during multi-day cycling expeditions. Its wind-resistant outer and hydrophobic down make it well-suited for unpredictable weather and exposed environments.

Who is the Rab Alpine 400 Long good for?

Designed for alpinists, backpackers, and bikepackers who need a dependable, lightweight sleeping bag for cooler conditions, the Alpine 400 is suited for those who prioritize warmth, durability, and efficiency in their outdoor kit.

Rab Alpine 400 Long Sleeping Bags

About the Rab Alpine 400 Long

What is the Rab Alpine 400 Long good for?

The Rab Alpine 400 Long Sleeping Bag is perfect for spring mountain adventures where warmth and packability are essential. Its lightweight yet insulated design provides a great warmth-to-weight ratio, making it ideal for cold nights in alpine conditions without adding unnecessary bulk to your gear.

How will some of the key features of the Rab Alpine 400 Long enhance my experience?

Filled with 400g of 650FP European duck down, it offers excellent warmth retention while remaining lightweight. The trapezoidal boxwall construction and chevron baffles ensure even heat distribution and minimize cold spots. A 3D-shaped down collar and zip baffle help trap warmth, while the narrow mummy fit and angled footbox enhance comfort. The Pertex® Quantum outer is wind-resistant, and the included compression sack allows for easy packing.

Why choose the Rab Alpine 400 Long?

The Alpine 400 balances warmth, weight, and packability, making it a great choice for serious mountain adventurers. Its thoughtful design maximizes insulation efficiency, while durable materials and expert construction ensure long-lasting performance. Plus, it’s hand-filled in the UK, guaranteeing quality craftsmanship.

Product Features

Pertex Quantum Shell - Soft to the touch with a highly packable design
Premium Down Fill - 650FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
Trapezoidal Boxwall Construction - For optimum down loft and warmth
3D Neck Collar - 3-dimensional shaped down filled neck collar to seal in warmth
Chevron Baffle - Weight saving design reduces down migration and optimises core warmth.
YKK Zips - YKK 3/4 length main zip with synthetic insulated zip baffle to trap warmth
UK Brand - Hand filled in Derbyshire UK
Angled Footbox - Provides room for a relaxed sleeping posture
Additional Features - Internal stash pocket; anti-snag zips; drawcord stuffsack; zipped cotton sack with water-resistant base for storage

The Lowdown

Style: Tapered Shape
Insulation: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
Materials: 20D Pertex Quantum nylon ripstop (36gsm) with fluorocarbon-free DWR Lining: 20D Recycled Nylon (38gsm)
Capacity: Single
Suitable For: 3 seasons - spring, summer, autumn
Temperature Comfort Range: 30°F | -1°C
Temperature Lower Limit: 19°F | -7°C
Temperature Extreme (Risk Range): -13°F | -25°C
Special Features: Footbox
Eco-Credentials: Includes Recycled Materials, RDS Certified Down

Size Chart

Fits Up To	200cm \| 6'7"
Shoulder Girth	160cm
Hip Girth	134cm
Knee Girth	102cm
Packed Dimensions	35x20cm
Total Weight	890g / 1lb 9oz
Zip	Left Hand

RAB

Alpine 400 Long Sleeping Bag

About the Rab Alpine 400 Long

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