KEEPDRYBAG

Product Line

Seven product families cover almost every waterproof carry requirement: roll-top dry bags, TPU waterproof backpacks, dry duffels, floating bags, welded totes, cooler-style wet bags and small accessory pouches. Each family below links to its own hub page with sizing tables, material data and related technical guides.

Black roll-top dry bag size range from 5L to 90L
Product families from 2L pouches to 90L expedition sacks
FamilyVolume rangeConstructionWater ratingBest for
Roll-top dry bag2L – 90LTPU or PVC laminate, RF weldedIPX6 – IPX8Paddling, camping, expeditions
TPU waterproof backpack18L – 55L0.3–0.5 mm TPU on 420D or 500DIPX5 – IPX7Commute, travel, marine
Dry duffel30L – 90LTPU laminate, welded zip or roll-topIPX6 – IPX7Rafting, expedition, gear haul
Floating dry bag5L – 30L500D TPU, foam collarIPX7Open water, rescue support
Waterproof tote12L – 25LTPU laminate, welded handlesIPX5 – IPX6City, beach, boat
Roll-top cooler / wet bag10L – 30LTPU with welded linerIPX6Pool, beach, picnic
Accessory pouch1L – 5LTPU film, welded zipIPX5 – IPX7Electronics, documents

Families in detail

Material options

OptionFace fabricFilmWhere it fits
Standard TPU420D polyester0.3 mmLightweight packs and pouches
Heavy TPU500D nylon0.5 mmMarine and expedition loads
Recycled TPUrPET 420D0.4 mm recycledSustainability-led ranges
PVC laminate500D polyester0.4 mmWarm-climate leisure product
Ripstop laminate210D ripstop nylon0.3 mmUltralight trail and travel

Choosing a construction

Three decisions determine cost, weight and field life more than anything else in a waterproof product, and they are best made in this order. First, the joining method: radio-frequency welding costs more to tool and cannot be repaired with a needle, but it removes the thousands of holes a sewn seam punches through the waterproof layer. Second, the film: TPU handles cold and abrasion well and avoids plasticisers, while PVC is cheaper and suits warm-climate leisure goods. Third, the closure: roll-top tops are the most reliable and the cheapest to make, while water-resistant zips look better on a city pack and need a storm flap to perform.

Everything else — denier, colour, printing, labelling, packaging — tunes the result rather than defining it. Get the first three right and the rest is straightforward; get them wrong and no amount of finishing will rescue the product in the field.

Hardware and finishing

Product questions

Can you build to our own specification?

Every product family on this site is made to order rather than sold from stock, so size, closure, fabric, film thickness, hardware colour and print method all sit inside your specification. Send drawings or a reference sample and we will quote against it.

What is the difference between TPU and PVC builds?

TPU stays flexible below freezing, resists hydrolysis better and does not need plasticisers, which makes it the choice for cold climates and eco-led ranges. PVC is cheaper and has a longer track record in warm-climate leisure goods, but it stiffens in the cold and carries heavier restricted-substance scrutiny.

Do you hold certification for recycled content?

Recycled TPU film and rPET face fabrics are supplied with Global Recycled Standard transaction records, so the recycled percentage can be stated on the label and backed during an audit.

What print methods are available?

Silk-screen printing for flat spot colours, heat transfer for photographic artwork, woven labels for branding, rubber and TPU badges for logos, and heat-transfer reflectives for night visibility. Each has a different minimum quantity and wash-fastness profile.

What are the lead times again?

Sampling is 6–10 working days from approved artwork and confirmed material availability. Bulk production is 35–50 days after sample sign-off. Both assume base fabric is in stock; mill-ordered colours add 15–20 days.

How is quality controlled?

Goods are inspected to AQL 2.5 as standard with tighter levels available on request. In-process checks cover weld peel strength, hydrostatic head on random panels, print adhesion and hardware pull tests. Every unit carries a batch code inside the collar.

Which sizes should a first range include?

Most new ranges open with a 5L accessory size, a 10L day size and a 20L overnight size, then add a 30L or 40L option once the first three sell through. Those three cover the majority of paddling, hiking and commuting use cases.