22L Drybag Backpack Stone
Add a robe — 25% off accessories
Product Description
Drybag Backpack
Keeps your kit bone dry from the car park to the water's edge and back again.
The welded roll top closure and waterproof seams seal out rain, sea spray and car boot puddles, so your robe, towel, flask and dry clothes arrive exactly as you packed them.
Roomy enough for a full swimming kit load. Padded straps for the walk down to the water. Heavy duty fabric, welded seams and reinforced stress points mean it takes a beating without complaint: dropped on rocks, dragged across sand, loaded up week after week.
The waterproof dry bag backpack built for open water swimmers, surfers and outdoor adventurers. Made from 100% recycled materials.
Free UK shipping and returns, backed by a 3 year guarantee.
Specifications
Materials & Construction
- Fabric: 0.5mm 500D PVC
- Seams: fully welded (not stitched)
- Stress points: bar-tacked and reinforced at strap joints
- Roll-top closure with heavy-duty buckle
- Fully waterproof — tested in heavy rain, spray, and brief submersion
Capacity & Sizing
- Volume: 22 litres
- Dimensions: approx 50cm H × 30cm W × 18cm D
- Fits a full swim kit: robe + towel + wetsuit + flask + dry clothes
Features
- Welded waterproof roll-top closure
- Adjustable padded shoulder straps
- Padded back panel
- 1 internal mesh pocket + 1 internal zipped pocket
- 2 external side pockets
- 1 external water-resistant zipped front pocket
Weight
- Weight: approx 0.9kg
Care
- Rinse with fresh water after use, especially after salt water
- Wipe inside dry with a towel
- Hang upside-down to air dry
- Do not machine wash
- Store hung or rolled — never folded flat while damp
Guarantee
- 3-year performance guarantee
22L Drybag Backpack Stone
Every detail, built to stay dry
Tap around the bag — the details are where it earns its keep.
Built properly, or not at all
Everything inside stays dry — that’s the whole job. This is the bar we hold it to.
Welded seams and a roll-top seal. Not water-resistant — waterproof.
No needle holes for water to find. The seams are fused shut.
Robe, towel, wetsuit, flask and dry clothes — all in, all dry.
Straps, seams and fabric covered. If it fails in normal use, it’s on us.
Changed your mind — free UK returns and exchanges.
Free tracked delivery on any UK order over £50.
See why cold water swimmers choose Seashell
FAQs
Are the fabrics really recycled and certified?
Yes.
Our towelling robes are made from GOTS-certified organic cotton, and our changing robes from certified recycled nylon & recycled polyester.
All third-party certified — so it's not just marketing speak.
What fits inside a 22L drybag?
Plenty. 22L is the sweet spot for a full swim kit — a Seashell Changing Robe, a towel, a wetsuit, a flask, and your dry clothes all fit comfortably, with room left for goggles, cap, and keys.
Sized to be your one-bag carry from home to the water and back.
Is it truly waterproof?
Yes — properly waterproof, not just water-resistant. The roll-top closure combined with fully welded (not stitched) seams means no water gets in from outside, and no water drips out from wet kit inside.
You can stuff a soaking wetsuit in there and not worry about anything else getting damp.
Is there proper back support for long walks?
Yes. The back panel is padded and the straps are adjustable, so it carries comfortably even when it's stuffed full.
Built for the walk from a lay-by to a remote lake, or down to the rocky bit of beach where everyone else parks.
Why is this different from a £20 drybag?
The fabric, the seams, and the fit. Cheaper drybags use lightweight fabric that tears on the first sharp rock, stitched seams that eventually leak, and basic straps with no padding.
Ours is built from heavy-duty PVC with welded seams and padded adjustable straps that sit comfortably under a full load.
Made to last years, not months.
What's your return policy and guarantee?
60-day free returns on unused bags. If you've packed a wet kit in it and realised it's not quite right, drop us a message anyway.
Plus a 3-year performance guarantee on anything that fails in normal use — straps, seams, or the roll-top buckle.
How do I care for it?
Rinse with fresh water after salty swims, wipe the inside dry with a towel, and hang it upside down to air-dry.