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Home > Products > Dry Backpack > Waterproof Dry Backpack > Lightweight Airtight Waterproof Backpack · 15L
Lightweight Airtight Waterproof Backpack · 15L
Sealock 15L Airtight Waterproof Backpack is a next-generation technical dry pack engineered for extreme water environments. Built with a proprietary airtight zipper system and RF-welded TPU inner chamber, it delivers IPX6-level protection against heavy rain, waves, and high-pressure water exposure.
Weighing only 400g, this ultra-light backpack combines durability and mobility with a 420D ripstop outer shell and ergonomic 3D honeycomb airflow back panel. Inside, a dedicated fleece-lined 15-inch laptop compartment ensures electronic safety even in marine conditions.
Designed for kayaking, surfing, rafting, monsoon trekking, and offshore travel, this pack is also optimized for OEM/ODM customization, making it a strong B2B product for outdoor, diving, and tactical gear brands.
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Product Description
Sealock Waterproof Technology
Lightweight Airtight Waterproof Backpack · 15L
An ultra-lightweight, 400g technical gear pack engineered with fully airtight zippers and a thermal-welded TPU lining. Delivering IPX6 heavy-wave defense, it securely safeguards your 15" workstation in extreme marine and watersport environments.
IPX6 WATERPROOF
100% AIRTIGHT ZIPPER
ULTRA-LIGHT 400G
Core Waterproof Engineering
Sealock Airtight Zipper
Proprietary hermetic zipper mechanism that forms a completely sealed internal chamber. Maintains internal pressure and blocks absolute moisture intrusion.
420D Ripstop Shell
High-density mini-grid weave treated with an advanced DWR (Durable Water Repellent) coating. Hydrophobic tech ensures water beads up and rolls off instantly.
TPU Welded Chamber
The interior compartment features 100% RF-welded TPU lining with zero needle holes. Ensures bulletproof protection during heavy-spray environments.
3D Honeycomb Panel
An integrated molded mesh suspension layout that maintains a continuous air-channel across your back, avoiding heat and sweat build-up.
15" Laptop Vault
An independent internal compartment lined with scratch-resistant premium soft fleece, keeping your laptop perfectly dry and isolated.
Systematic Partition
Features an airtight main chamber, 1 secure zippered inner pocket, and 4 specialized card slots to organize essentials in moisture-heavy environments.
Technical Features Break Down
- IPX6 Rated Hermetic Chamber: Driven by the Sealock patented airtight zipper, the entire pack seals tightly to withstand high-pressure water jets and continuous severe ocean sprays.
- Dual Layer Defense: The 420D Ripstop shell works in perfect synergy with the internal hot-press TPU lining, establishing an uncompromising double-barrier against moisture.
- Airtight Front Access: The frontal arc pocket utilizes a dedicated water-tight zipper, providing zero-compromise sealing and rapid access for essential electronics, wallets, or passports.
- Fleece-Lined Workstation Pocket: The dedicated 15-inch laptop vault shields your high-value digital devices from mechanical vibrations and sudden shocks.
- Structured S-Strap Suspension: Outfitted with 3D honeycomb mesh padding and an adjustable ergonomic chest buckle to distribute weight evenly and prevent side-sway during swift movements.
- PP Core Rigid Handle: The top grab handle integrates a structured internal PP skeleton wrapped in heavy-duty webbing, allowing easy rinsing and reliable overhead hoisting.
Engineered For Real Outdoor Scenarios
Surfing & Watersports
Deploys safely on tidal zones; keeps personal dry gear fully protected from constant ocean waves.
Kayaking & Rafting
Airtight core safely withstands violent river rapids and continuous cockpit pooling.
Monsoon Hiking & Canyoning
Survives multi-day continuous torrential rains without a single drop of seepage.
Wilderness Overlanding
Provides all-weather dust-proof and mud-proof perimeter storage for delicate accessories.
Diving & Snorkeling
Perfect shoreline staging pack to store dry clothes and electronics while you are in the water.
Technical Specifications
| Volumetric Capacity | 15 L (Compact Technical Profile) |
| Net Weight | ~400 g (Ultra-Lightweight Engineering) |
| Waterproof Rating | IPX6 (Resistant to High-Pressure Water Jets & Heavy Ocean Waves) |
| Primary Closure | Sealock Patented Heavy-Duty Airtight Mechanical Zipper |
| Outer Shell Material | 420D Ripstop Grid Nylon + Hydrophobic DWR Coating |
| Internal Bladder | 100% Stitchless RF-Welded TPU Waterproof Liner |
| Dimensions | 28 × 12 × 47 cm |
| Back Support System | Molded 3D Honeycomb Mesh Airflow Panel + Ergonomic S-Straps + Sternum Buckle |
How It Compares
| Technical Feature | Standard Water-Resistant Pack | Traditional Roll-Top Dry Bag | Our Airtight Pack (15L) |
|---|---|---|---|
| Waterproof Mechanism | DWR Surface Coating Only | Manual Roll-Down Top Closure | Airtight Zipper + TPU Inner Chamber |
| Waterproof Rating | Light Rain Splashes Only | IPX6 to IPX8 (Depending on rolls) | IPX6 Verified Heavy-Wave Proof |
| Dedicated Laptop Compartment | ❌ None / Non-Waterproof Internal Pocket | ❌ None (Single bulk cavity) | ✓ Yes (Independent 15" Fleece Vault) |
| Internal Organization Nodes | ❌ Standard Office Slots Only | ❌ None (Unstructured sack) | ✓ Yes (Zippered Pocket + 4 Card Slots) |
| Breathable Back Panel | ✓ Yes | ❌ None (Sticky flat PVC/Tarpaulin back) | ✓ Yes (3D Honeycomb Mesh Airflow Back) |
| Access Convenience | High (Standard Zipper) | Low (Requires tedious rolling & unbuckling) | High (Instant Smooth Zipper Access) |
B2B Supply Chain & Customization
OEM / ODM Technical Dry Bag Factory
Planning to capture the high-tier technical outdoor or paddleboarding market? As an established developer of specialized airtight gear, we support full private label pipelines backed by mature precision manufacturing and rigorous leak testing protocols.
• Private Label Branding & Logos
• 420D Ripstop Colorway Customization
• Tailored Modular Lash & D-Ring Configurations
• Custom Sizing & Capacity Scaleups
• Custom Internal Pocket Segmentation
• Specialized Retail Box Packaging
Strategic Manufacturing Advantages:
- Watersport Brands looking to upgrade from traditional low-margin roll-top dry bags to high-value airtight packs.
- Marine & Dive Equipment Distributors seeking reliable IPX6 factory-verified airtight architectures.
- Global E-commerce Retailers requiring premium technical differentiation to eliminate race-to-the-bottom pricing.
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