Fellkit

Alpkit

Alpkit Cloud Peak 300

Best use

Made for
Backpacking and wild camping
Not for
Bikepacking, Winter mountain
Why these labels
  • Backpacking and wild camping: The maker states this use, and the published specs do not rule it out.
  • Bikepacking: Bulky for bike bags: packs to 26.9 litres
  • Winter mountain: Comfort rating 0 °C: too cold for winter nights

From the maker's stated use and the published specs.

  • Summer wild camp: 4/10 UK, roughly May to September, nights above about 8 °C, sheltered pitches.
  • Three-season hills: 5/10 UK hills in spring and autumn. Wind, rain, and nights near freezing.
  • 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: 3/10 How much it adds to your pack, compared with the whole market.

Comfort 0 °C, limit -6 °C (EN 13537).

Lowest price we found

£129.99 at Alpkit

In stock. Free delivery. Checked 8 Nov 2026.

RRP £129.99, checked 19 Oct 2026.

Go to Alpkit

Spring-to-autumn camps in wet UK weather where a washable synthetic bag is preferred to down

Comfort
0 °C
Limit
-6 °C
Fill
synthetic
Weight
1.57 kg (Regular)
Packed size 26.9 L, 37 cm long and 25 cm across Compare with a 2-litre bottle

A bit longer than a 2-litre bottle and about two and a half times as wide. Drawn to scale.

Where to buy

Alpkit £129.99 In stock. Free delivery. Regular, left or right zip; free UK delivery over £60. No other UK shop found.

View at shop: Alpkit

Prices 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

From maker's figures 7/10

How cold a night you can sleep comfortably through. 7: Better than most.

Maker's EN 13537 comfort 0 °C (limit -6 °C) sits in the -4.9 to 0 °C band: spring to autumn with light frost, not a winter bag.

Room inside

Estimate: only 1 review about room inside (fewer than the 3 we need, so never above 8) 8/10

How much room to move, bend your knees and sleep on your side. Roomier is comfier. 8: Clearly better than most.

The one review lists roomy width and length as a plus point. We found no second source.

Weight

From maker's figures 3/10

How much it adds to your pack. 3: Below average. Fine for some trips, not others.

1,574 g (without the 141 g stuff sack) is in the 1,300–1,699 g band. The Great Outdoors weighed 1,405 g in 2024, so the figure may have changed since; we band the maker's current one.

Packed size

From maker's figures 1/10

How much room it takes in your rucksack. 1: A real weak point.

Maker gives ⌀37 x 25 cm, so a stuff sack: 3.1416 x 18.5 x 18.5 x 25 = 26,879 cm³, so 26.9 L, in the 13 L+ band. That is the size as stuffed; the compression straps shrink it, but the maker gives no compressed figure.

In short

Good for

  • Spring-to-autumn camps in wet UK weather where a washable synthetic bag is preferred to down
  • Budget three-season bag for car-supported or short carry-in camps

Strengths

  • Synthetic Thermolite Ecomade fill (35% recycled) keeps loft when damp, according to the maker and two reviewers
  • Machine washable, with a tough nylon outer and a PFC-free water repellent
  • Roomy cut, large hood and a thick full-length zip baffle
  • Left or right zip, and a 3-year Alpine Bond guarantee

Weaknesses

  • Heavy at 1,574 g and very bulky: 26.9 L as stuffed, so it takes a big share of a rucksack
  • Alpkit's own 'sleep limit' of -8 °C is far colder than the EN 13537 comfort figure of 0 °C: plan on 0 °C
  • Hood is too small to use an inflatable pillow inside, according to Countryfile
  • Only two independent reviews, so comfort, damp and durability are estimates, not reviewed scores

Sources

We haven't tested this ourselves. Every score comes from these specs, tests and reviews.

ShowHide sources (3)
  1. Alpkit: Cloud Peak 300 product page (EN 13537 ratings, weight, packed size) Specs, 19 Oct 2026. Used for: warmth, weight, packed size
  2. The Great Outdoors: Alpkit Cloud Peak 300 review Review, 20 Jul 2024. Used for: room inside
  3. Countryfile: Best three-season sleeping bags (Cloud Peak 300 tested) Test, 16 Jan 2024