Fjallraven
Fjallraven Keb Three Seasons Down Sleeping Bag (Regular)
Where it fits
- Also works for
- Backpacking and wild camping
- Not for
- Winter mountain
Why these labels
- Backpacking and wild camping: Light to carry: 1.1 kg
- Winter mountain: Comfort rating 0 °C: too cold for winter nights
From the maker's stated use and the published specs.
- Summer wild camp: 5/10 UK, roughly May to September, nights above about 8 °C, sheltered pitches.
- Three-season hills: 4/10 UK hills in spring and autumn. Wind, rain, and nights near freezing. Capped at 4: needs warmth 7+ (comfort 0 °C or colder).
- Winter camp: 4/10 UK winter or high ground. Below freezing, strong wind, possibly snow. Capped at 4: needs warmth 9+ (comfort -5 °C or colder).
- Weight: 6/10 How much it adds to your pack, compared with the whole market.
Comfort 0 °C, limit -6 °C (none).
Lowest price we found
£324.99 at Ultralight Outdoor Gear
Go to Ultralight Outdoor Gear Compare 3 shopsSpring-to-autumn UK camps where a full-length zip and an ordinary hood matter more than the last few hundred grams
- Comfort
- 0 °C
- Limit
- -6 °C
- Fill
- 700 fill down
- Weight
- 1.08 kg (Regular)
- Packed
- Not published
Where to buy
Ultralight Outdoor Gear £324.99 In stock. Free delivery. Regular in stock (the Long is out of stock). Shop lists RRP £379.99 and 1,076 g.
View at shop: Ultralight Outdoor GearAlpinetrek £379.95 In stock. Free delivery. Navy, Regular. Free UK delivery from £85.
View at shop: AlpinetrekFjallraven £380 In stock. Free delivery. Free shipping over £100; delivery 5-6 working days. Stock read from the add-to-cart button, not a stock figure.
View at shop: FjallravenPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Warmth
Estimate from maker's specs: maker's own comfort rating, not lab tested (one band lower) 5/10How cold a night you can sleep comfortably through. 5: Does the job. Average for wild-camping gear.
Estimate from maker's specs
Room inside
Estimate from maker's specs: bag shape (fewer than 3 reviews about room) 3/10How much room to move, bend your knees and sleep on your side. Roomier is comfier. 3: Below average. Fine for some trips, not others.
No review we found says how roomy it is, so this is an estimate from the bag shape.
Weight
From maker's figures 6/10How much it adds to your pack. 6: A bit better than average.
1,080 g (Regular, Fjallraven figure) sits in the 1,000–1,299 g band. One UK shop lists 1,076 g.
Packed size
Estimate from maker's specs: fill type and bag weight (no packed size published) 5/10How much room it takes in your rucksack. 5: Does the job. Average for wild-camping gear.
Estimate from maker's specs
In short
Good for
- Spring-to-autumn UK camps where a full-length zip and an ordinary hood matter more than the last few hundred grams
- Campers who want a down bag that comes with its own compression and storage bags
- Walkers who prefer one brand's gear and its UK shop and returns
Strengths
- Comfort 0 °C, limit -6 °C and extreme -24 °C published, with 580 g of 700-cuin goose down (90% down, 10% feather)
- Full-length two-way zip with press studs along it as a back-up if the zip breaks, and an anti-snag slider
- Straight and slanted box-wall baffles to cut cold spots, plus an adjustable internal collar
- Inside zipped pocket, water-resistant hood and footbox, and a compression bag and mesh storage bag included
Weaknesses
- 1,080 g in the Regular, in the 1,000–1,299 g band: heavy for a bag with a 0 °C comfort figure
- No packed size or volume published, so the packed-size score is 'Not enough evidence'
- Fjallraven names no test standard for its temperature figures, so there is no warmth score
- 700-cuin down is lower than the 850 to 900 fill used in lighter three-season bags
- No independent hands-on test of this exact bag found, so the damp, comfort and durability scores are 'Not enough evidence'
- Regular fits users up to 185 cm only (a Long is sold)
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.