Sealock supplies the 20L IPX6 TPU Waterproof Roll Top Backpack with Laptop Compartment, a welded 420D TPU pack rated IPX6 with a roll-top closure, a dedicated padded laptop sleeve (up to 15.6"), a waterproof internal zip pocket and a full ergonomic harness with waist straps. Lightweight at 0.75 kg. OEM/ODM from MOQ 300, FOB Guangdong.
20L IPX6 TPU Waterproof Roll Top Backpack with Laptop Compartment
At a Glance
Roll-top waterproof closure — welded 420D TPU body, IPX6, sheds heavy rain.
Dedicated laptop compartment — padded sleeve fits up to a 15.6" laptop.
Waterproof internal zip pocket — plus mesh and document organization.
Full ergonomic harness — breathable back, sternum strap and waist stabilization.
Light at 0.75 kg — 20L, unisex, in black and army green.
Product Introduction
Sealock manufactures the 20L IPX6 TPU Waterproof Roll Top Backpack with Laptop Compartment, model SL-E986, for buyers who want a light waterproof pack that works for both the commute and the outdoors. As a welded dry-bag factory, we build the body from durable 420D TPU waterproof fabric with high-frequency welded seams and a roll-top closure, so this waterproof roll top backpack keeps heavy rain, spray and dust off a laptop and daily gear. Inside is a dedicated padded laptop compartment and a waterproof internal zip pocket; outside is a breathable ergonomic harness with a sternum strap and waist stabilization — all at just 0.75 kg.
Roll-Top Waterproof Construction
The body is high-frequency welded into a seamless shell with no exposed stitching, and the roll-top folds down and buckles to seal the main compartment. Rated IPX6, it gives excellent splash protection and keeps out heavy rain, road spray and dust, and it handles short-term water exposure. Because it is a roll-top rather than a sealed dive closure, long-term immersion is not recommended — it is built for wet-weather commuting and outdoor use. We confirm the seal on every bag with a heavy rain and water-jet test appropriate to the IPX6 rating.
Dedicated Laptop Compartment and Interior
Inside, a padded laptop sleeve holds up to a 15.6" laptop against the back panel — it also fits 13" and 14" laptops and an 11" iPad Pro — and a document compartment keeps papers flat. A waterproof internal zip pocket protects a phone or wallet, a mesh organizer pocket sorts cables and chargers, and an accessory pocket handles the small stuff. It is a proper work-and-travel interior, not just a dry sack.
Ergonomic Carrying System
A breathable air-mesh back panel and EVA-padded shoulder straps spread the load and cut back sweat, an adjustable sternum strap steadies the pack, and waist stabilization straps keep it from shifting on the move. Adjustable side compression straps cinch the load, a reinforced carry handle makes it easy to grab, and a reinforced bottom panel takes the wear where the pack sits down.
1. Engineering Specifications
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Item
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Specification
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Brand
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SEALOCK
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Model No.
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SL-E986
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Product Name
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20L Waterproof Roll Top Backpack
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Product Category
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Waterproof Backpack
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Backpack Type
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Roll Top Waterproof Backpack
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Construction Type
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Roll-Top Waterproof Daypack
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Manufacturing Process
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High-Frequency Welded Seams + Reinforced Stress-Point Stitching
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Waterproof Structure
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Welded 420D TPU Body + Roll-Top Closure
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Closure
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Roll Top
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Waterproof Rating
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IPX6
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Capacity
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20L
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Expanded Size
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68 × 37 × 16 cm
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Rolled Size
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50 × 26 × 16 cm
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Net Weight
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0.75 kg
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Laptop Compartment
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Padded sleeve, fits up to 15.6"
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Back System
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Breathable Ergonomic Air-Mesh Back Panel
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Carry System
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Adjustable Padded Straps + Sternum Strap + Waist Stabilization Straps
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Base
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Reinforced Bottom Panel
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Gender
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Unisex
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Colour
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Black · Army Green (custom available)
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Country of Origin
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Guangdong, China
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2. Material Specifications
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Component
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Material
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Purpose
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Outer Fabric
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420D TPU Waterproof Fabric
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Waterproofing with abrasion resistance
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Inner Layer
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TPU Waterproof Coating
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Second waterproof barrier
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Lining
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Polyester
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Smooth, hard-wearing interior surface
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Seams
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High-Frequency Welded
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Needle-hole-free waterproof joints
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Laptop Sleeve
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Padded Foam
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Protects a laptop against the back panel
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Shoulder Straps
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EVA Foam + Breathable Air Mesh
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Comfort and airflow
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Buckles
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High-Strength POM
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Durable, corrosion-resistant closures
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Webbing
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Polyester Webbing
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Straps and compression
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Side Pocket
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Elastic Mesh
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Bottle and quick-stash storage
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Base Panel
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Reinforced Laminate
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Wear resistance where the pack sits down
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3. Functional Specifications
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Feature
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Description
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Waterproof Protection (IPX6)
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Welded TPU body and roll-top give excellent splash and heavy-rain protection; short-term exposure OK, long-term immersion not recommended.
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Laptop Protection
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Padded compartment fits up to a 15.6" laptop, plus 13"/14" and 11" iPad Pro.
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Waterproof Inner Pocket
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Internal waterproof zip pocket for phone, wallet and valuables.
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Multi-Compartment Organization
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Document compartment, mesh organizer and accessory pocket keep gear sorted.
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Ergonomic Carry
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Breathable back, sternum strap and waist stabilization carry 20L comfortably.
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Load Stability
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Side compression straps cinch a part-full load.
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Gear Attachment
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Front daisy-chain loops for clip-on accessories.
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Bottle Storage
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Dual elastic side mesh pockets.
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Easy Maintenance
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Waterproof surface wipes clean of rain, mud and dust.
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4. Customization / OEM Specifications
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Option
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Available
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Fabric Colour
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Black · army green · custom Pantone
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Fabric Type / Thickness
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420D TPU (standard) · PVC option · custom thickness
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Capacity / Dimensions
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Customizable
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Laptop Size
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13" / 14" / 15.6" sleeves
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Interior Layout
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Configurable pockets and dividers
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Waterproof Level
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IPX6 standard · airtight-zipper upgrade for higher rating
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Webbing / Buckle Colour
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Customizable
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Logo Methods
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Silk-screen · Heat-transfer · Custom logo · Welded patch
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Hang Tags & Labels
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Custom (OEM)
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Packaging
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Customizable
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Full Custom Development
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Ground-up development from sketch, sample or target spec
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MOQ
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300 pcs
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Sample Lead Time
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7–15 days
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Production Lead Time
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30–45 days
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Factory Audit
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Available
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OEM / ODM
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Supported
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Our OEM/ODM capability goes well beyond colour and logo changes: bring a sketch, a sample or a target spec — capacity, fabric, laptop size, interior layout and waterproof level — and our China base develops it from the ground up into a finished original product. Ground-up development needs longer lead time than a stock-colour change, so share your launch date and we will schedule sampling.
5. Packaging Specifications
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Item
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Details
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Individual Packaging
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PE / PP Bag
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Carton Type
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5-Layer Export Carton
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OEM Carton Printing
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Available
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Barcode Label
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Available
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Hang Tag / Care Label
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Available (OEM)
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Shipping Mark
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Available
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Pallet Packing
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Optional
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Engineered For Real Outdoor Scenarios
💼
Daily Commuting
Welded 420D TPU shell and roll-top seal protect up to 15.6" laptops against heavy rain downpours.
🚴
Cycling & Riding
Sternum and waist stabilization straps keep the 0.75 kg pack steady against high-speed road spray.
⛰️
Hiking & Camping
Ergonomic air-mesh back panel channels airflow and reduces sweat build-up on long mountain hikes.
🚣
Kayaking & Boating
IPX6-rated seamless body shields internal document organizers from direct wave splashes and deck spray.
🎣
Fishing & Beach
Internal waterproof zip pocket isolates phones and wallets securely against sand, mud, and water drops.
Quality Inspection Standards
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Inspection Item
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Standard
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Fabric Inspection
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100%
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Weld Seam Inspection
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100%
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Stress-Point Stitch Check
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100%
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Heavy Rain / Water-Jet Test (IPX6)
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Batch sampling
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Strap, Handle & Buckle Load Test
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Random sampling
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Colour Consistency
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100% vs. signed sample
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Appearance Inspection
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100%
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Carton Inspection
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100%
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Inspection runs IQC on incoming TPU fabric, zippers and hardware, IPQC on welds, stitching and roll-top assembly in process, and OQC before shipment with an AQL check and a signed golden-sample comparison. Third-party inspection (SGS / QIMA) is available on request.
Product Highlights
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Feature
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Advantage
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Roll-Top + Welded TPU
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IPX6 protection that sheds heavy rain and spray
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Dedicated Laptop Compartment
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Protects a work laptop up to 15.6"
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Waterproof Inner Zip Pocket
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Keeps phone and valuables dry inside
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Ergonomic Breathable Back
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Comfortable for long-distance carrying
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Lightweight 0.75 kg
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Low carry weight for a 20L waterproof pack
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Multi-Compartment Interior
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Work-and-travel organization, not just a dry sack
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Printing & Logo Options
Brand it your way: silk-screen, heat-transfer, custom logo and welded patch — with customizable webbing and buckle colours, hang tags and labels.
OEM / ODM and Wholesale
As the factory, we supply the SL-E986 for OEM, ODM and wholesale buyers from an MOQ of 300 pcs, FOB Guangdong, with samples in 7–15 days and production in 30–45 days. We customize colours, fabric thickness, TPU or PVC material, laptop size, interior layout, webbing, buckles, packaging and your logo, and we offer full ground-up custom development. For a custom or wholesale waterproof backpack program under your own brand, send your spec and target quantity and we will quote against it.
FAQ
How waterproof is it?
It is rated IPX6 with a welded 420D TPU body and a roll-top closure — excellent splash and heavy-rain protection, and it handles short-term water exposure. Long-term immersion is not recommended at IPX6.
What size laptop fits?
The padded compartment fits up to a 15.6" laptop, and also holds 13" and 14" laptops and an 11" iPad Pro.
Does it have a hip belt?
It has waist stabilization straps plus an adjustable sternum strap and a breathable padded back, so it carries 20L comfortably over distance.
What are the MOQ and lead times?
MOQ is 300 pcs, FOB Guangdong, with samples in 7–15 days and production in 30–45 days. Black and army green plus custom colours and logos are available. Send your spec for a quote.
Request a Quote
Sealock (YiFuLong Outdoor Gear Co., Ltd.) has built welded waterproof gear in Guangdong since 2003. To order the SL-E986 or start an OEM/ODM program, send us your colours, laptop size, logo and target quantity for pricing and lead time. MOQ 300 pcs · samples 7–15 days · production 30–45 days.
YiFuLong Outdoor Gear Co., Ltd. (Sealock)
Email: info@sealock.com.hk · Tel: +86-13632981825
