Montane
Montane Waterproof Dry Bag (15 L)
- Waterproof build: 5/10 How well its build keeps water out, from the published seams, closure and submersion claim.
- Weight for its size: 9/10 How much it adds to your pack for the space it protects.
Lowest price we found
£17.99 at Ultralight Outdoor Gear
Go to Ultralight Outdoor Gear Compare 2 shopsA light, cheap organiser or pack liner for a sleeping bag or clothes inside a rucksack
- Capacity
- 15 L
- Weight
- 54 g
- Seams
- Taped
- Closure
- Roll top
- Fabric
- 40 denier
Where to buy
Ultralight Outdoor Gear £17.99 In stock. Free delivery. Pebble Blue and Ginkgo Gold, same price. Free tracked UK delivery on all orders.
View at shop: Ultralight Outdoor GearMontane £18 In stock. Pebble Blue is the only colour. The shop's banner says free UK delivery over £25, but its delivery page says free delivery is currently offered on all orders.
View at shop: MontanePrices 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 9/10How much it adds to your pack for the space it protects. 9: Among the best you can buy for this.
54 g for 15 L is 3.6 g/L, under 4.0 g/L (Montane's figure). Ultralight Outdoor Gear lists 53 g, which is also under 4.0 g/L; we band Montane's own figure.
In short
Good for
- A light, cheap organiser or pack liner for a sleeping bag or clothes inside a rucksack
- Rain protection on UK hill trips when kept inside the pack
- Not for river crossings or anything that may go under water
Strengths
- 54 g for 15 L (3.6 g/L)
- Stiffened roll-top with a buckle, 40D siliconised nylon ripstop with a TPU coating
- Montane's lifetime guarantee against faults
- Four sizes from 2 to 30 L
Weaknesses
- Montane says it is not designed to be submerged, and advises keeping electronics in two dry bags
- Montane says not to store sharp or abrasive objects in it
- The 15 L is listed in one colour only, Pebble Blue
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.