Custom Dry Bag Manufacturer — Waterproof Dry Sacks & Roll-Top Bags, MOQ 500
Your trusted dry bag factory since 2014. We produce custom-branded waterproof dry bags, roll-top dry sacks, floating bags, and submersible dry bags for outdoor brands, water sports companies, and e-commerce sellers — with full private label and OEM/ODM service.
Looking for a reliable dry bag manufacturer? Junyuan Bags has been designing and manufacturing custom waterproof dry bags since 2014, with our founder bringing over 20 years of bag industry expertise since 2004. We supply private-label dry bags to outdoor brands, water sports retailers, and e-commerce sellers across North America, Europe, and Oceania — delivering 350,000+ dry bags annually with AQL 2.5 quality assurance.
- ✓ Full customization — sizes (5L to 40L+), colors, fabric, closure type, logo, packaging
- ✓ Complete range — roll-top dry sacks, submersible bags, floating dry bags, waterproof backpacks, dry bag duffels
- ✓ Waterproof expertise — TPU-laminated fabrics, welded seam construction, roll-top closures, IPX7-rated waterproofing
- ✓ AQL 2.5 inspection — every batch tested for seam integrity, closure function, buoyancy, and waterproof performance
- ✓ Factory-direct pricing — no trading company markup

Custom waterproof dry bags — roll-top dry sacks in 5L, 10L, 20L, 30L, and 40L sizes in your brand colors
What Is a Dry Bag and Who Needs One?
A dry bag (also called a waterproof dry sack, roll-top dry bag, floating dry bag, or submersible bag) is a purpose-built waterproof container designed to keep contents completely dry in wet environments. Unlike standard waterproof backpacks, dry bags feature roll-top closure systems with buckle seals, welded or taped seam construction, buoyant materials that float when sealed, and durable fabrics rated for submersion. This specialized design makes dry bags essential for kayakers, canoeists, rafters, anglers, sailors, hikers, beachgoers, and outdoor brands.
The global dry bag market has grown rapidly alongside increased participation in paddle sports, water-based adventure tourism, and outdoor recreation. TPU-laminated fabrics, heat-welded seam construction, and multi-liter size systems are the dominant trends. Brands that offer custom branded dry bags with private labeling can capture margins of 3–5× above commodity pricing, especially in the outdoor specialty, e-commerce, and water sports segments.
Our Custom Dry Bag Capabilities
| Feature | Options |
|---|---|
| Styles | Roll-top dry sacks, submersible dry bags, floating dry bags, dry bag duffels, waterproof backpacks, dry bag sets (multi-size), phone dry pouches, barrel-style dry bags |
| Size range | 2L (phone pouch) to 40L+ (expedition barrel) — custom dimensions available |
| Fabric options | 500D PVC tarpaulin, 420D ripstop nylon with TPU coating, 210D HT nylon with PU laminates, TPU-laminated polyester (food-grade available), recycled RPET with waterproof lining |
| Closure systems | Roll-top with buckle seal (1–5 rolls), buckle-and-clip closure, zipper with storm flap, drawstring with cord lock, Velcro roll-seal |
| Waterproofing | Heat-welded seams, RF-welded construction, taped seam sealing, IPX6–IPX7 rated submersion protection, floating buoyancy design |
| Safety features | High-visibility color options, reflective strips, D-rings for tethering, whistle buckles, grab handles, transparent window panels |
| Branding | Silkscreen, heat transfer, embroidered logo, woven labels, debossed rubber patches, custom zipper pulls, PVC logo tabs |
| Packaging | Custom poly bag, branded box, hangtag, retail-ready packaging, Amazon FBA prep, multi-size set packaging |

Premium dry bag — roll-top buckle closure, heat-welded seams, and IPX7-rated waterproof construction
Roll-Top Dry Sack vs. Submersible Bag vs. Floating Dry Bag vs. Dry Bag Duffel
Different water environments require different dry bag solutions. Here is how our four main dry bag types compare:
| Feature | Roll-Top Dry Sack (5–40L) | Submersible Bag (10–30L) | Floating Dry Bag (5–20L) | Dry Bag Duffel (30–80L) |
|---|---|---|---|---|
| Primary use | Kayaking, canoeing, general waterproof storage | Scuba gear, diving equipment, full submersion | Rafting, paddleboarding, water float trips | Expedition gear, boat storage, extended trips |
| Closure | Roll-top with side-release buckle | Roll-top + secondary waterproof zipper | Roll-top with buoyant air chamber | Roll-top or zipper + storm flap |
| Fabric | 500D PVC tarpaulin | 840D TPU-laminated nylon | 420D ripstop with TPU coating | 600D PVC or TPU tarpaulin |
| Waterproof rating | IPX6 (splash/rain) | IPX7 (submersible 1m/30min) | IPX6 (floats on surface) | IPX6 (heavy rain protection) |
| Floats? | Yes when sealed with air | Designed for submersion | Yes — built-in buoyancy | Varies by size |
| Weight | 150–400g | 350–800g | 100–250g | 500–1200g |
| Best for | Day paddlers, campers, festival-goers | Divers, snorkelers, underwater photographers | Rafting guides, SUP riders, beachgoers | Expedition paddlers, boat captains, guides |
| Price point (FOB) | $4–$12 | $8–$18 | $3–$9 | $12–$28 |
| Market demand | Highest volume, broadest appeal | Niche premium, growing dive market | Strong SUP/rafting growth | Steady expedition market |
Materials & Construction Quality
Our dry bags are built for water durability — using premium waterproof fabrics, heat-welded construction, and marine-grade hardware:
- 500D PVC Tarpaulin — heavy-duty, fully waterproof material with excellent abrasion resistance; standard for roll-top dry sacks and barrel-style bags
- 420D Ripstop Nylon + TPU Coating — lightweight, tear-resistant, with thermoplastic polyurethane coating for flexible waterproofing; ideal for floating dry bags and packable designs
- 840D TPU-Laminated Nylon — premium, high-tenacity fabric with full TPU membrane lamination; used for submersible bags requiring IPX7 rating
- 210D HT Nylon + PU Laminate — ultra-lightweight high-tenacity nylon for packable dry sacks and emergency waterproof bags
- RF/Heat-Welded Seams — radio frequency welded or heat welded seam construction eliminates needle holes, providing 100% waterproof integrity
- Marine-Grade Buckles — Duraflex or Woojin side-release buckles rated for saltwater exposure, UV resistance, and 30kg+ load
- YKK Waterproof Zippers — Aquaguard or Vislon waterproof zippers rated for 3,000+ cycles, used on secondary closures and access panels
- D-Ring Tether Points — stainless steel or reinforced PVC D-rings for attaching dry bags to boats, kayaks, and rafts
Quality Standard: AQL 2.5
Every production batch undergoes AQL 2.5 inspection — the international standard for consumer goods. We check seam weld integrity, closure buckle function, fabric waterproof rating, buoyancy performance, print accuracy, and overall construction quality. Each bag is water-tested on a random sample basis per batch. Defective units are pulled before shipment.

Custom dry bags in action — keeping gear completely dry during kayaking and water sports adventures
Dry Bag Styles We Produce
Roll-Top Dry Sacks (5–40L)
The classic waterproof storage solution — 500D PVC tarpaulin body, roll-top closure with side-release buckle seal (3–5 rolls for full waterproofing), heat-welded seams, D-ring tether point, grab handle, and available in 5L, 10L, 20L, 30L, and 40L sizes. Popular for kayaking brands, camping gear companies, and outdoor retail chains. Can be sold individually or as multi-size sets.
Submersible Dry Bags (10–30L)
Professional-grade waterproof protection — 840D TPU-laminated nylon body, roll-top plus secondary waterproof YKK Aquaguard zipper, RF-welded seams achieving IPX7 submersion rating (1 meter depth for 30 minutes), reinforced D-rings for boat mounting, and padded carry straps. Popular for diving brands, underwater photography gear companies, and professional marine equipment suppliers.
Floating Dry Bags (5–20L)
Lightweight surface waterproofing — 420D ripstop nylon with TPU coating, roll-top closure with integrated air chamber for buoyancy, heat-welded seams, mesh drainage pocket on exterior, adjustable shoulder strap, and transparent TPU window for phone/touchscreen access. Popular for SUP (stand-up paddleboard) brands, rafting outfitters, and beach/tropical tourism brands.
Dry Bag Duffels (30–80L)
Expedition-capacity waterproof storage — 600D PVC tarpaulin body, oversized roll-top or waterproof zipper with storm flap closure, heat-welded seams, padded shoulder straps with sternum strap, multiple D-ring tie-down points, compression straps, and internal mesh organizer pocket. Popular for expedition outfitters, boat captain supply companies, and extended trip adventure brands.
Phone & Electronics Dry Pouches (0.5–2L)
Small-format waterproof protection — 0.2mm TPU film body with IPX8 rating, triple roll-top or zip-lock closure, transparent TPU front panel for touchscreen access, lanyard cord with breakaway safety clip, and floatable design. Popular for outdoor brands, festival accessories, and promotional gift lines.
How to Order Custom Dry Bags
| Step | Action | Timeline |
|---|---|---|
| 1. Inquiry | Send us your specifications: size, fabric, color, closure type, quantity, branding requirements | Day 1 |
| 2. Quote | We provide detailed pricing with material options, tooling costs, and lead time | 1–2 business days |
| 3. Sample | Pre-production sample with your logo and fabric choices for waterproof testing and approval | 6–10 business days |
| 4. Production | Full production run with in-line weld integrity checks and waterproof testing | 35–50 days depending on quantity |
| 5. Inspection | AQL 2.5 final inspection with waterproof test report and photo report before shipment | 1–2 days |
| 6. Shipping | FOB Xiamen / CIF your port, or door-to-door via our logistics partners | 7–30 days depending on destination |

Our dry bag production line — from fabric cutting to heat welding to AQL 2.5 waterproof testing
Private Label & Branding Options
As a dedicated dry bag manufacturer, we offer complete private label services:
- Logo application — silkscreen printing, heat transfer, embroidered patches, woven labels, debossed rubber tags, PVC logo tabs
- Custom color matching — Pantone color match for fabric, buckles, straps, and zipper pulls
- Custom packaging — branded poly bags, retail boxes, sleeve bands, hangtags, multi-size set packaging
- Size labeling — printed or woven size labels (5L, 10L, 20L, etc.) with your brand info
- Amazon FBA prep — poly bagging, FNSKU labeling, carton marking per Amazon requirements
500D PVC tarpaulin roll-top dry sack, 20L capacity, heat-welded seams, roll-top closure with Duraflex side-release buckle, D-ring tether point, grab handle, Pantone color match, silkscreen logo (2 colors), woven brand label, individual poly bag packaging with hangtag, MOQ 500 pieces (assorted sizes available within same order).
Why Junyuan Bags for Your Dry Bag Orders?
Since our founding in 2014 (with our founder’s experience dating back to 2004), we’ve become one of China’s most reliable dry bag manufacturers. Here’s what sets us apart:
- Factory-direct pricing — no middleman markup; you deal directly with the production facility
- Low MOQ of 500 pieces — perfect for Amazon sellers testing new SKUs or brands expanding their product line
- Fast sampling — 6–10 day sample turnaround means you can move from concept to market quickly
- Full customization — from fabric weight to closure system to packaging design, every detail is yours to specify
- Proven export experience — 200+ brands in 40+ countries trust us with their dry bag production
- Quality guarantee — AQL 2.5 inspection on every batch; waterproof-tested; defective rate below 0.5%
Ready to Start Your Custom Dry Bag Order?
Email us at [email protected] or WhatsApp +86 17750020688 with your specifications. We’ll provide a detailed quote within 24 hours.
Frequently Asked Questions About Custom Dry Bags
Q1: What is a custom dry bag?
Q2: What is your MOQ for custom dry bags?
Q3: How long does sampling and bulk production take?
Q4: Can I get a free sample?
Q5: What materials do you use for dry bags?
Q6: Can you make fully submersible dry bags?
Q7: What quality standard do you use on bulk shipments?
Q8: Can you fully customize the dry bag design and logo?
Q9: Do you offer private label packaging?
Q10: Do your dry bags actually float?
Q11: Can you produce dry bag sets (multiple sizes in one package)?
Q12: How do I start a custom dry bag order?
Explore Our Other Product Lines
- Custom Waterproof Bag Manufacturer — waterproof bags & packs
- Custom Hiking Backpack Manufacturer — trekking packs & outdoor daypacks
- Custom Cycling Bag Manufacturer — bike panniers & frame bags
- Custom Travel Bag Manufacturer — comprehensive travel luggage solutions
- Custom Sports Bag Manufacturer — athletic and sports bags
- Custom Duffel Bag Manufacturer — sports and travel duffel bags
- Custom Packing Cubes Manufacturer — travel organizers & compression cubes
