The Alpine range is meticulously crafted for mountain terrains, whether traversing the towering Alps or the remote Himalayas, on foot or by bicycle. Designed with an excellent warmth-to-weight ratio and a compact structure, the Alpine 400 is an ideal choice for springtime mountain excursions. It features 400g of 650FP duck down insulation encased in a wind-resistant Pertex® Quantum outer shell, complemented by a recycled nylon lining.
The Alpine sleeping bag is constructed with innovative techniques to optimise down performance. The trapezoid boxwall baffles enable the down to expand fully, eliminating cold spots and maximising thermal efficiency. Its chevron baffle design ensures even distribution of the down, enhancing stability and uniform warmth. Furthermore, the openings are tailored to minimise heat loss, incorporating a 3D-shaped down collar that can be cinched snugly for heat retention and a down-filled baffle along the zip to prevent warmth from escaping. A narrow mummy fit and an angled footbox reduce unnecessary weight and bulk while ensuring a restful night’s sleep.
Hand-filled in the UK, every down bag ensures that the insulation retains its loft and thermal properties, as the down is never compressed prior to use.
Features
- The outer shell is made of 20D Pertex® Quantum nylon ripstop with fluorocarbon-free DWR.
- The lining is constructed from 20D recycled nylon.
- Contains 650FP European duck down with Nikwax fluorocarbon-free hydrophobic finish (400g).
- Chevron baffle design on the torso reduces down movement and improves core warmth.
- Trapezoidal boxwall construction enhances loft and thermal efficiency.
- Includes a YKK-zipped internal stash pocket for small items.
- Features a 3D-shaped down-filled neck collar to retain warmth.
- YKK ¾-length main zip includes a down-filled baffle to trap heat.
- Anti-snag zip insert and guard ensure smooth zip operation.
- Angled footbox supports a comfortable sleeping position.
- Comes with a zipped cotton storage sack with a water-resistant base.
- Includes a drawcord stuffsack for portability.
- Hand-filled in Derbyshire, UK, to maintain loft and warmth.
- Designed in a tapered mummy shape for better fit and warmth.
Sustainability Features
- Fluorocarbon (PFAS) free fabric
- Fluorocarbon (PFAS) free product
- Made with renewable energy
Specifications
| Weight | (Regular) 840g/29.6oz, (Long) 890g/31.4oz |
| Insulation | 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz) |
| EN (13537:2012) temperature rating | ISO EN: Comfort: -1°C (30°F), Limit: -7°C (19°F), Extreme: -25°C (-13°F) |
| Rab sleep limit | -5°C / 23°F |
| Packed size | 35cm x 20cm (13.8in x 7.9in) |
| Product code | QSD-27 |
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Technology
Pertex® Quantum
A lightweight, soft, and windproof fabric designed to allow insulation to loft fully. Highly packable and protective, it is perfectly suited for mountain pursuits.
