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Custom Waterproof Dry Bags Manufacturer
Build True Waterproof Dry Bags with an Engineering-Driven Manufacturer
Roll-Top Dry Bags · Backpack Dry Bags · Floating Bags · TPU & Tarpaulin Dry Bags · Kayak & SUP Dry Bags · OEM/ODM Development
A real dry bag is not just “water-resistant” — it must stay 100% waterproof in real outdoor conditions:
- Thrown into a river
- Strapped onto a kayak
- Dropped off a boat
- Exposed to waves, rain, and UV
- Rolled and unrolled thousands of times
To achieve this, a dry bag must be engineered with:
- Non-porous, fully waterproof materials (TPU, PVC tarpaulin, coated nylon)
- No needle holes — seams are welded, not sewn
- Proper roll-top closure design that creates an airtight seal
- Strong welded connection points for straps and buckles
- UV resistance, abrasion resistance, and tear resistance
- Tested waterproof performance (submersion, pressure, flexing)
Lovrix manufactures dry bags for:
- Outdoor & camping brands
- Kayak & SUP brands
- Marine & boating companies
- Fishing & diving gear brands
- Travel & adventure brands
- Lifestyle/outdoor DTC brands
- Amazon/Shopify sellers
- Promotional & corporate gift companies
We don’t just “make bags.” We engineer dry bags that protect your customer’s gear in real water environments.
What a Professional Dry Bag Manufacturer Actually Does
A dry bag is closer to technical equipment than to a normal sewn bag.
As a dry bag manufacturing partner, Lovrix provides a complete engineering + production system.
1. Waterproof Materials Engineering
The first foundation of a dry bag is the base material.
We work with:
TPU (Thermoplastic Polyurethane) Laminated Fabric
- Highly flexible and soft
- Lightweight with strong tensile strength
- Excellent cold resistance (doesn’t crack in low temperature)
- Better eco profile than traditional PVC
- High-level waterproofing and durability
- Ideal for mid-to-high end outdoor brands
PVC Tarpaulin (Heavy-Duty)
- Extremely tough and abrasion resistant
- Excellent waterproof performance
- Holds shape well for bigger volume dry bags
- Ideal for boating, marine, and heavy adventure use
Nylon / Polyester + TPU or PVC Coating
- Good for lightweight dry bags
- Ripstop weaves available
- Suitable for hiking/trekking markets
- Can combine “packability” + waterproofing
Key performance aspects we consider:
- Hydrostatic head (water column rating)
- Tear strength
- Puncture resistance
- UV resistance for long sun exposure
- Flexibility for repeated rolling/folding
We select material combinations based on your target:
- Market positioning (budget / mid / premium)
- Use scenario (casual beach vs. hardcore river rafting)
- Required lifetime (casual vs. professional-grade)
2. Welded Seam Technology (No Stitch Holes)
Dry bags must not be stitched in the water-holding area — sewing creates thousands of tiny leakage points.
Lovrix uses heat-welding technology:
- High-frequency welding
- Hot-air welding
- Hot wedge bonding
These processes:
- Fuse layers of TPU/tarpaulin together
- Create a continuous waterproof barrier
- Eliminate the need for stitching on waterproof panels
We engineer:
- Correct overlap width for seams
- Correct temperature & pressure profiles
- Seam geometry for stress distribution (e.g. tapered corners)
Each seam is inspected and tested to ensure:
- No pinholes
- No weak bonding areas
- No peeling between material layers
3. Roll-Top Closure Engineering
The roll-top closure is the critical sealing mechanism.
Lovrix designs:
Roll-Top Height & Roll Count
- Optimal height to ensure 3–4 folds under typical use
- Enough material to roll even when bag is full
Top Stiffener Design
- Internal stiffening strip (often PE board)
- Keeps the roll straight and easy to close
- Helps users form a tight seal
Buckle & Clip Placement
- Side-to-side buckles for compact rolling
- Front-to-side buckles for backpack-style carry
- D-ring integration for kayak tie-down
The goal: even non-expert users can quickly and reliably close the bag watertight.
4. Floating & Buoyancy Engineering
Many buyers expect a dry bag that floats with gear inside.
Lovrix accounts for:
- Bag volume vs. typical load weight
- Air trapped during closure
- Material density
- Seam and closure integrity under partial submersion
We test:
- Controlled immersion tests
- Floating test with weighted load
- Time-based buoyancy performance
This is critical for kayaking, SUP, rafting, and marine customers.
5. Abrasion, Tear & UV Resistance
Outdoor use involves harsh conditions:
- Rocks, gravel, branches
- Dragging on the ground
- UV exposure (sun)
- Salty environments (ocean)
We design:
- Thick bottom panels
- Optional reinforced base
- Double-layered stress zones
- UV-stabilized top coatings
And test:
- Tear strength
- Abrasion cycles
- Flex cracking
- Colorfastness under UV
6. Straps, Carry Systems & Attachment Points
Different use cases = different carry systems:
Single-Shoulder Dry Bags (5L–20L)
- Detachable adjustable strap
- Side D-rings welded to the body
Backpack Dry Bags (20L–55L)
- Twin shoulder straps (padded or webbing)
- Optional sternum strap
- Welded strap anchor patches
- Ergonomic placement for comfort
Kayak & Boat Attachment
- Welded D-rings
- Reinforced loops
- Strap tie-down compatibility
We balance comfort, durability, and waterproof safety.
7. Full OEM/ODM Development
Lovrix does not just “produce what you send”—we can also develop from an idea:
- Concept to sketch
- Sketch to 2D pattern
- Material selection and performance suggestion
- Construction & weld engineering
- Logo + trim design suggestions
- Prototype, test, refine
- Prepare for mass production
Perfect for:
- New outdoor brands
- Existing brands expanding into waterproof gear
- Influencer/outdoor collaborations
- Private label product lines
What Buyers Look For When Choosing a Dry Bag Manufacturer
Your customers (outdoor brand owners, product managers, purchasing managers) usually care deeply about these aspects:
Real Waterproof Performance
They expect:
- Protection in heavy rain
- Protection when splashed
- Protection if the bag falls into the water
- Sometimes protection under short-term full submersion
We align performance to approximate levels such as:
- Light use – splashproof, short exposure
- Outdoor use – kayaking, boating, SUP
- Professional use – rafting, longer submersion scenarios
Then we design:
- Material thickness
- Seam type
- Roll-top structure
- Closure method
to achieve their required level.
Durability & Lifetime
B2B buyers don’t want returns or warranty issues.
They ask:
- Will the material crack over time?
- Will the welding peel apart?
- Will UV destroy the bag after one season?
- Will the buckles or straps break?
We answer this with:
- Appropriate material selection (not over-cheap)
- Correct weld width & parameters
- Extra reinforcement at strap joints
- Hardware that is UV- and salt-resistant
Comfort, Weight & Packability
For hiking and travel use, buyers care about:
- Total weight of the bag
- Comfort when carrying
- Size when rolled empty (packable or not)
We can adjust:
- Fabric thickness vs. weight
- Strap type (webbing vs. padded)
- Amount of reinforcement
to match their priorities (ultralight vs. ultra-rugged).
Branding, Color & Market Fit
Dry bags often sit in outdoor lifestyle markets:
- Kayak / SUP
- Surf / beach
- Travel / adventure
- Camping / hiking
- Fishing / hunting
We help align:
- Color palette with brand identity
- Large front logo or minimal branding
- Matte vs. gloss finish
- Solid color vs. color block (body + base + trim)
- Reflective elements for low-light safety
Price vs. Performance Tiering
Many brands create tiered product lines:
- Entry-level dry bag
- Mid-range dry bag
- Premium dry bag
Lovrix supports you in:
- Material downgrade/upgrade
- Strap simplification or enhancement
- Hardware selection
- Packaging options
so you can cover multiple price points in your catalog.
Types of Dry Bags We Manufacture
Below is a more detailed view of the dry bag categories Lovrix can produce.like roll-top dry bags, dry backpacks, kayak deck bags, waterproof duffels, floating bags, compression sacks, marine bags, and waterproof phone cases with welded seams and TPU/PVC materials.
Roll-Top Dry Bags (Classic Waterproof Bags)
Capacity Options: 2L / 5L / 10L / 15L / 20L / 30L / 40L / 60L Ideal for: kayaking, paddle boarding, rafting, beach trips, travel.
Features include:
- fully welded seams
- lightweight & durable
- detachable crossbody strap
- clear window option
- reflective strip
- welded D-rings
Dry Backpacks (Waterproof Backpack)
Designed for: hiking, boating, canyoning, fishing.
Features:
- padded shoulder straps
- breathable back padding
- sternum strap
- side pockets (splash-proof)
- welded back support panel
- waterproof zipper front pocket
Waterproof Duffel Bags
High-capacity duffels for outdoor + travel.
- 40L / 60L / 90L
- dual carry handles
- removable shoulder strap
- multi-point compression straps
- heavy-duty welded base
Kayak Deck Bags
Flat, lashable, marine-grade design.
- waterproof zipper top
- shock cord rigging
- low-profile construction
- universal kayak compatibility
Floating Dry Bags
Used for swimming, open water training, snorkeling.
- buoyant air chambers
- high-visibility colors
- whistle buckle
- waterproof phone compartment
Waterproof Phone Cases
Features:
- IPX8 rating
- transparent touchscreen
- triple-lock seal
- neck lanyard
Dry Compression Sacks
For hiking, backpacking, mountaineering.
Features:
- ultralight TPU
- roll-top compression
- strong welded construction
- ideal for sleeping bags & clothes
Marine & Fishing Dry Bags
Made for long-term exposure to sun & saltwater.
Features:
- tarpaulin + TPU mix
- welded lash points
- heavy-duty anchor panels
Promotional Dry Bags
Used for:
- sports events
- drinks brands
- water sport festivals
- corporate campaigns
Budget-friendly + customizable.
Material Options for dry Bags
Dry bags use TPU/PVC tarpaulin, welded lining, Hypalon patches, reinforced PVC, waterproof zippers, and heavy-duty hardware for IPX-rated waterproof performance and outdoor durability.
TPU Materials (Premium)
- 210D TPU (lightweight)
- 420D TPU (balanced durability)
- 840D TPU (heavy-duty premium)
Benefits:
- eco-friendlier than PVC
- strong flexibility
- better cold resistance
- UV stable
- weld-friendly
PVC Tarpaulin Materials (Most Popular)
- 500D PVC
- 500D Scrim-reinforced PVC
- glossy / matte finishes
Benefits:
- highly waterproof
- extremely durable
- ideal for roll-top bags
- cost-effective
Reinforcement Materials
- Hypalon
- EVA molded panels
- welded PVC straps
- webbing anchor patches
Hardware Options
- heavy-duty buckles
- rubber-coated zippers
- waterproof zippers
- aluminum carabiners
- D-rings
- reflective patches
OEM/ODM Customization Options
Most Comprehensive Customization Menu
Customization includes waterproof fabric selection, capacity, color, printing, roll-top styles, pockets, straps, hardware, reinforcement, reflective panels, transparency windows, and packaging.
Bag Size / Capacity
- 2–90L
- custom shapes
- round or oval base
- box-style dry duffel
Fabric & Thickness
- TPU 210D–840D
- PVC 500D
- tarpaulin
- hybrid TPU/PVC
Buckle & Roll-Top Configuration
- top buckle
- side buckle
- dual-buckle
- reinforcement strip
Add-On Components
- front zipper pocket
- splash-proof outer pocket
- clear TPU window
- mesh water bottle holder
- removable straps
- compression straps
- MOLLE webbing
- reflective safety strips
Branding Options
- silk print
- digital print
- reflective print
- PVC rubber patch
- raised TPU logo
- woven label
- large-format brand graphics
Packaging
- individual polybag
- tube-style packaging
- branded box
- roll-up packing for space savings
- FBA packaging
Dry Bag Manufacturing Process
Manufacturing includes design, CAD patterning, welding, roll-top construction, reinforcement bonding, pressure testing, waterproof testing, QC verification, packaging, and global shipping.
Step 1
Project Brief & Target Definition
We clarify:
- Target customer profile (weekend kayak users / pro rafting / casual beach)
- Expected waterproof level (light / standard outdoor / extreme)
- Size range (single size vs full series: 5L–30L)
- Material preference (TPU vs. PVC vs. coated nylon)
- Required features (backpack straps, window, pockets, etc.)
- Branding style (clean/minimal vs. bold graphics)
- Target ex-factory price range
- Expected MOQ & volume plan
Step 2
Concept & Technical Proposal
We prepare:
- Initial structural concept(s)
- Recommended materials & thickness
- Suggestion for welded seam layout
- Strap system (single / backpack / duffel carry)
- Logo placement options
You approve or adjust this before patterning.
Step 3
Pattern Engineering & Weld Layout
Our technical team:
- Drafts 2D patterns with seam overlaps
- Decides weld area widths
- Plans reinforcement patches at stress zones
- Designs roll-top shape and length
- Plans D-ring and strap patch geometry
All with manufacturability and performance in mind.
Step 4
Prototype Sample Production
We produce 1st prototype:
- Cut fabric pieces
- Perform weld operations
- Attach strap patches and hardware
- Implement roll-top closure
Then internally test for:
- Waterproof integrity (fill with water or air-pressure test)
- Floating performance (if required)
- Weld strength (manual stress test)
- Usability (how easy to roll/close)
You receive photos/video + the physical sample for review.
Step 5
Testing & Iteration
If needed, we adjust:
- Material thickness
- Roll-top height
- Buckle position or type
- Strap length or padding
- Bag diameter/height (volume adjustments)
- Branding size or placement
We can make 2nd sample if the product is complex or high-end.
Step 6
Pre-Production Planning
Once sample is approved:
- Final BOM (Bill of Materials) is locked
- Production welding fixtures are prepared
- Production SOPs are defined for weld sequence, temperature, and QC points
Step 7
Mass Production
Steps:
- Fabric cutting and panel preparation
- Weld seam assembly (body tube + base)
- Weld reinforcement patches & D-ring patches
- Attach straps & buckles
- Apply prints / logos
- Final inspection & shaping
Step 8
Quality Control
Lovrix QC includes:
- Random batch waterproof tests (fill or pressure test)
- Seam weld inspection (visual + manual stress)
- Dimensions measurement
- Strap/buckle pull tests
- Surface inspection (no bubbles, creases in weld zones)
- Color and logo consistency
Only passed goods enter packing.
Step 9
Packing & Logistics
Typical packing:
- Individual polybag (can be rolled to reduce volume)
- Custom swing tags / inserts
- Master cartons optimized for shipping
Logistics options:
- Sea shipment for bulk orders
- Air shipment for urgent orders or launches
- Courier shipment for samples or small runs
Why Choose Lovrix as Your Dry Bag Manufacturing Partner
As a specialized manufacturer, Lovrix provides OEM/ODM, custom and personalized dry bag solutions, with bespoke designs, wholesale programs, and bulk production capacity for brands seeking reliable, scalable waterproof manufacturing.
- 18+ years of bag manufacturing experience
- Deep expertise in waterproof, welded, and technical bags
- Ability to work with TPU, PVC tarpaulin, coated nylon at scale
- Full OEM/ODM support for new product development
- Strong R&D + pattern + welding process team
- Knowledge of outdoor market expectations & feedback
- Flexible MOQ options for new brands and test orders
- Reliable mass production capacity for growing projects
- Dedicated project management & communication team
- Long-term partnership mindset, not just one-time orders
Lovrix positions itself as a solution provider, not just a low-cost factory.
Quality & Certifications
Certified by ISO9001, OEKO-TEX100, GRS, and Higg Index, Lovrix ensures every bag product meets global compliance standards. We implement strict QC at every stage, from yarn to final packaging.
FAQ — Dry Bag Manufacturer
1. Are your dry bags fully waterproof or just water-resistant?
Our dry bags are designed as fully waterproof, using welded seams (no stitching on the main body) and roll-top closures. When rolled correctly, they protect against heavy rain, splashes, and accidental immersion.
2. What sizes can you produce?
Most common volumes are 5L, 10L, 15L, 20L, 30L, 40L, and 55L, but we can customize any size, shape, and proportions you need.
3. Do you offer backpack-style dry bags?
Yes. We can add twin shoulder straps, sternum straps, and even padded back panels for backpack dry bags, ideal for hiking and SUP users.
4. Can you make eco-friendlier TPU dry bags instead of PVC?
Yes. We can use TPU laminated fabrics, which have better flexibility, cold resistance, and environmental profile compared to traditional PVC.
5. Can you add transparent windows or phone pockets?
Yes. We can weld in clear TPU windows, phone pockets, or ID windows while maintaining waterproof performance.
6. Can we print large artwork or all-over graphics on the dry bag?
Yes. We can do screen printing, digital printing, or large logo prints on TPU/PVC surfaces. We can also match your brand’s Pantone colors.
7. What is your usual MOQ for dry bags?
Typically 300–500 pcs per design/color, depending on the material and complexity. For higher-end TPU models, MOQs may be slightly higher due to material sourcing.
8. How long does sampling take?
Standard sample lead time is about 10–15 days after confirming design, materials, and logo requirements.
9. Do you support Amazon FBA preparation?
Yes. We can:
- Apply FNSKU/barcode labels
- Pack according to FBA polybag & carton rules
- Optimize carton size and weight for FBA shipments
10. What information do you need to start a dry bag project?
Just share:
- Any reference photos or sketches
- Approximate size & volume target
- Preferred material (TPU/PVC/nylon + coating)
- Target use case (kayak, hiking, beach, etc.)
- Logo file & branding expectations
- Quantity and target price range
We’ll propose a technical solution and move into sampling.
Trusted By 1000+ Brands And Innovative Startups
Build High-Performance Cooler Bags with Lovrix
If you’re planning to:
- Launch your first waterproof dry bag as an outdoor brand
- Add a dry bag series to your kayak/SUP/marine catalog
- Create a branded dry bag as a promotional product
- Upgrade from low-end dry bags to higher-quality, lower-return models
- Develop a private label dry bag line for retail or e-commerce
Lovrix can support you with end-to-end OEM/ODM development and manufacturing:
- Product concept & technical design
- Material & weld engineering
- Waterproof testing & refinement
- Mass production with strict QC
- Amazon-ready or retail-ready packing
Send us your idea, drawing, or reference product today, and we’ll help you turn it into a high-performing, branded dry bag that your customers can truly trust in the water.
- (+86) 13823134897
- info@lovrix.com
