Salty Kit
Watermelon 20L Waterproof Dry Bag Backpack
Watermelon 20L Waterproof Dry Bag Backpack
IPX6 Waterproof Rated - floats, protects against water splashes, heavy rain, dirt & sand
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Watermelon 20L Waterproof Dry Bag Backpack – Adventure Just Got Juicier
Make a splash with the Watermelon 20L Waterproof Dry Bag Backpack, the freshest addition to the Salty Kit collection. Built from tough-as-nails 500D PVC tarpaulin, this bright and bold dry bag backpack delivers IPX6-rated waterproof protection, keeping your gear dry, secure and adventure-ready—no matter the weather or water levels.
Perfect for paddleboarding, kayaking, hiking, beach escapes and travel, this 20L waterproof backpack features detachable padded shoulder straps for versatile carry options, plus an internal zippered mesh pocket to keep keys and essentials tucked away. Roll the top tight at least three times to seal in dryness, and you’re good to go—from board to boat to trail.
Its buoyant design floats when closed properly, and with reinforced D-rings, and a front rubber grab handle, you’ll have all the rigging points you need for real-deal outdoor functionality. Bonus: it’s super easy to clean with warm soapy water—or a squeeze of lemon juice for stubborn stains.
🌊 Key Features:
- 100% Waterproof dry bag made with 500D PVC tarpaulin
- IPX6 rating – dustproof & resists powerful water jets
- 20L capacity – ideal for wetsuits, towels, snacks & gear
- Roll-top closure – roll 3x tight for watertight seal
- Floats in water when sealed properly
- Reinforced waterproof welded seams
- Inside mesh zip pocket for valuables
- Detachable, adjustable shoulder straps
- 6 D-rings + rubber grab handle
- Easy to clean – warm water or lemon juice
- Storage tip – keep in cool, dry place out of direct sunlight
📏 Product Specs:
- Dimensions: H50cm x W23cm (cylindrical), H60cm x W37cm (flat)
- Weight: 720g
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Size Guide
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Choose the right size - our useful guide
WHAT FITS IN OUR 5 LITRE BAG
5 Litre Dry Bag – The Mini Adventurer
Perfect for light travel, quick dips, or keeping essentials dry on the go.
Fits:
- Phone, keys, wallet
- Small towel or sarong
- Snacks or a reusable water bottle
- Sunglasses and sunscreen
- Lightweight top or swimwear
Best for: SUP sessions, dog walks, festivals, or stashing valuables inside a larger kit.
WHAT FITS IN OUR 20 LITRE BAG
20 Litre Dry Bag – The Day Tripper
Your go-to for full-day adventures with room for comfort and backup layers.
Fits:
- Full-size towel
- Change of clothes (tee, leggings, hoodie)
- Lunchbox and flask
- Compact camera or GoPro
- Drift Wrap or lightweight robe
- First aid kit and dry pouch
Best for: Beach days, kayaking, hiking, or packing for unpredictable Cornish weather.
WHAT FITS IN OUR 30 LITRE BAG
30 Litre Dry Bag – The Weekend Warrior
Built for serious gear hauls and multi-day missions.
Fits:
- Two full outfits + shoes
- Large towel or blanket
- Bulky Changing Robe or Wetsuit
- Toiletries and tech pouch
- DSLR camera or drone
- Snacks, books, and extras
- Bottle holder
Best for: Camping, surf trips, or when you need one bag to rule them all.
Delivery & Returns
We offer free standard shipping within the UK, Channel Islands and Isle of Man by Royal Mail or Evri from our HQ in Cornwall.
We now offer delivery via DPD to Australia & New Zealand.
We aim to get your order processed and dispatched within one to two business days.
EU & International Duties and taxes: Salty Kit is not responsible for any added customs taxes or duties that may incur upon delivery of your item. Custom duties and tax is not included within the cost of your order and is to be paid by the customer.
Does not apply to Wholesale orders.
For our Returns & Refunds Policy click here
How to video - a guide to using your Salty Kit Bag
Had a lot of lovely comments about my new watermelon backpack
Its very comfortable to wear as a back pack. I know its meant to be a dry bag too, but ideally it could have done with a few more internal pockets to use as a backpack, otherwise all good
Thanks for your feedback Beverley, glad you love your bag, yes its a bit of a showstopper! :)