Forclaz
Forclaz Waterproof Compression Bag (25 L)
- Waterproof build: 5/10 How well its build keeps water out, from the published seams, closure and submersion claim.
- Weight for its size: 5/10 How much it adds to your pack for the space it protects.
Squeezing a sleeping bag or clothes down inside a rucksack: a Decathlon customer review mentions an air valve to let air out and a clear side
- Capacity
- 25 L
- Weight
- 200 g
- Seams
- Not published
- Closure
- Roll top
Where to buy
Decathlon UK £17.99 In stock. Decathlon is both the brand and the shop. Delivery from £2.99 (set by size and weight, shown in the basket); free for members on orders over £80. Only the 25 L is listed on Decathlon UK.
View at shop: Decathlon UKPrices 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
Waterproof build
Estimate from maker's specs: seams, closure and water rating 5/10How well its build keeps water out, from the published seams, closure and submersion claim. 5: Does the job. Average for wild-camping gear.
Estimate from maker's specs
Weight for its size
From maker's figures 5/10How much it adds to your pack for the space it protects. 5: Does the job. Average for wild-camping gear.
200 g for 25 L is 8.0 g/L, in the 6.0–8.4 g/L band (Decathlon's figure, in its headline and its spec table).
In short
Good for
- Squeezing a sleeping bag or clothes down inside a rucksack: a Decathlon customer review mentions an air valve to let air out and a clear side
- Keeping a spare set of clothes dry and sorted on a trip
- Not suitable for canyoning, says Decathlon
Strengths
- Clear window on one side shows what is inside
- Large "canyon" style opening and a roll top (a customer review adds a clip closure)
- Can also be used as a pillow, Decathlon says
- 2-year warranty
Weaknesses
- 200 g for 25 L (8.0 g/L)
- Decathlon calls it water-resistant in one place and fully watertight once closed in another
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.