Trusted by International Search & Rescue
Don’t get wet
without us.
Premium waterproof dry bags, backpacks and swim gear — made from tough 500D waterproof PVC and backed by a 5 year guarantee.
Built for every adventure
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Why people trust Ultra Dry
Ultra Dry Adventurer is a UK family business that has been making waterproof dry bags since 2016. We have sold a quarter of a million bags (250,000) — more than 24,000 in 2025 alone — and hold over 14,000 Amazon reviews, including 10,000+ at 4.7 stars on our best-selling 10 litre dry bag. Our bags are carried by UK Fire & Rescue International Search and Rescue (ISAR) teams, every bag has a 5-year guarantee, and most orders are dispatched the next working day. We also run a free calendar of 373 UK watersports events.
250,000
bags sold since 2016 — a quarter of a million
14,000+
Amazon reviews — 4.7★ on our best-selling dry bag
4.9 / 5
average rating from buyers on this website
Next day
most orders are dispatched the next working day
500D Waterproof PVC
Premium-grade, about 0.5mm thick — soft, flexible and strong, even in the harshest conditions.
UK Family Business
Packed and posted with care from the UK, for UK adventurers.
Rated ★★★★★ by adventurers
“Very pleased with my 10L yellow Ultra Dry Bag. It arrived within a few days and was exactly as described and shown in the pictures. I tested it the other day during the Great River Race and it performed perfectly, providing reliable protection throughout. I followed the advice provided in the “Important Information” section of the website to ensure full protection. The product is well made and it is particularly good to see such quality being produced in the UK by a family-run business. I would recommend checking the phone case size before ordering, as the fit for my iPhone 7 is slightly loose, which was not a problem. Overall, an excellent product and a worthwhile purchase. I wish the family every success with their business!”
“Easy to order, arrived quickly in packing which can be used for storage. Very good quality and perfect for purpose. Thank you”
“The float is very sturdy and roomy. Bought for snorkelling holiday. Two great straps and can be used as backpack. Float holds fins, goggles,snorkel, surf boots,small towel and water bottle . Then adequately holds deck shoes, shorts, t-shirt, towel and phone(great waterproof phone holder free with purchase). Inflates easily and tows along behind. Easy to inflate/deflate and fold away after use. Great product”
“Brilliant bag, does everything I need it to. Very study, waterproof, iPhone bag included for free and the extra strap for carrying this means I can use it as my bag when I hike to swim in the Lake District as can fit towel and water shoes and clean clothes inside it too! Thank you!”
“5 Star after sales service from Mark. Needed a spare part for my tow float. Despatched promptly the float is back in use already! Thank you”
“Its absolutely epic i love mine so much i use it as an everyday coat and especially when i go paddle boarding in trearddur bay”