Start with a light and warm down sleeping bag and add a water-resistant shell fabric and you end up with something that’s about perfect for damp UK weather, or for prolonged snowy treks, climbs or expeditions, where down always seems to start wetting out. But the Glacier SL 400 isn’t just about fabrics and fillings, it’s also a seriously well-designed sleeping bag that has an excellent shoulder baffle and hood, and while the comfort rating is a modest 4°C, I’d be pretty confident down to zero in it personally – so well and truly in the 3-season UK range. At 925g, it’s not a featherweight, but this is due to the 400g of 725 fill power down which makes it one of the warmest bags tested as well as the most weatherproof. A word of warning, the ‘Alpine’ fit is actually very narrow – I’m not overly broad and I found it on the snug side around the shoulders – so try before buying. Traceable humanely-sourced down too, and that’s got to be worth a better night’s sleep.
Review by Tom Hutton @