Skip to product information
1 of 6

Salty Kit

Black 20L Waterproof Dry bag Backpack

Black 20L Waterproof Dry bag Backpack

IPX6 Waterproof Rated - floats, protects against water splashes, heavy rain, dirt & sand

Regular price £38.00 GBP
Regular price Sale price £38.00 GBP
Sale Sold out
Shipping calculated at checkout.

20L Black Waterproof Dry Bag Backpack – Built for Adventure, Ready for Anything

From sea to summit, the 20L Black Waterproof Dry Bag Backpack is your rugged companion for fearless days outdoors. Built from heavy-duty 500D PVC tarpaulin, this spacious dry bag is 100% waterproof and IPX6 rated, offering reliable protection against water, dust, dirt, sand and snow—whether you’re on the beach, paddling your SUP, kayaking through coves, sailing into open waters, or hiking forest trails.

This durable waterproof backpack features a roll-top closure designed to seal out moisture (just roll it at least three times), while the detachable padded shoulder straps offer customisable comfort for every mission. An internal zip mesh pocket keeps your essentials tucked away, and reinforced D-rings plus a carabiner give you plenty of gear loops for bottles, towels or extras.

And yes—it floats when sealed, so if it takes a splash, your stuff stays safe.

🛶 Key Features:

  • 100% Waterproof dry bag made with 500D PVC tarpaulin
  • IPX6 rating – resists dust and strong water jets
  • 20L capacity – perfect for wetsuits, towels, snacks & gym gear
  • Roll-top closure – secure with at least 3 tight rolls
  • Floats in water when sealed properly
  • Reinforced welded seams for added durability
  • Internal zippered mesh pocket for valuables
  • Adjustable, detachable shoulder straps for comfort
  • 6 D-rings + carabiner + strong clasps
  • Rubber front grab handle
  • Easy to clean – warm water or lemon juice for tough marks
  • Storage tip – keep in cool, dry place out of direct sunlight

📐 Specs:

  • Capacity: 20 Litres
  • Dimensions: H50 x W23cm (cylindrical) / H60 x W37cm (flat)
  • Weight: 720g
View full details

Collapsible content

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.

🔗 See the 5L bag in action

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.

🔗 Explore the 20L bag setup

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.

🔗 Peek inside the 30L bag

Delivery & Returns


20 litre dry bags by salty kit in watermelon and olive great for adventuresWe 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