Engineered for urban professionals, this airtight technical waterproof backpack delivers a 23L capacity optimized for daily commuting and travel. Built with premium TPU fabric and a hermetic zipper, it shields 15.6" laptops from severe rain. Backed by robust factory R&D, it supports fast OEM/ODM customization.
Boasting a calculated external volume of 23L and providing up to 22L of pure, uncompromised usable capacity, this medium-capacity backpack functions as a seamless extension of your daily pack.
Its monolithic main storage bay is precisely calibrated to secure a full 15.6-inch laptop workstation, standalone tablets, sensitive design documents, and a complete single-day change of clothing for quick cross-border transits.
Engineered from an advanced TPU-coated composite. The outer shell presents a completely smooth, glare-free matte texture that rejects dirt, grease, and continuous friction.
Constructed completely stitchless. Every single seam intersection undergoes radio-frequency thermal welding, fusing the fabrics at a molecular level to eliminate stitch holes entirely.
The core entry is driven by a heavy-duty mechanical airtight zipper, reinforced by a secondary protective laminated fabric shroud that deflects direct velocity water sprays.
By striping away excessive webbings, external cords, and traditional loose pockets, the pack achieves a purely aerodynamic, smooth silhouette. This extreme design profile ensures water sheets off instantly.
The integrated structural body retains its posture even when completely empty, avoiding shifting or sagging while navigating urban bike lanes or crowded terminal check-ins.
| Physical Profile Dimensions | 29 × 16 × 50 cm |
| Volumetric Envelope | ~23,200 cm³ (~23 Liters Gross Volume) |
| Functional Usable Volume | 20L – 22L (Medium Capacity Range) |
| External Core Shell | Premium Smooth TPU Laminated Completely Waterproof Fabric |
| Seam Processing Tech | 100% Stitchless Molecular High-Frequency RF Welded Panels |
| Hardware Mechanism | Heavy-Duty Airtight Main Zipper + Integrated Over-Pocket Protective Shroud |
| Device Storage Vault | Isolated Sleeve Securing Up to 15.6-inch Professional Laptop + Dedicated Tablet Slot |
Maintains a premium, minimalist architectural profile appropriate for corporate executive boardrooms.
The clean 23L footprint serves as a reliable overhead or under-seat short-haul transit companion.
Snug fit ergonomics prevent side-to-side shifting during fast, technical city bike commutes.
Hermetically shields high-value digital storage devices from sudden heavy weather downpours.
B2B Factory Solutions
Looking to scale your catalog with high-end airtight equipment? As an established technical manufacturer, we offer turnkey commercial private label pipelines backed by strict vacuum pressure leak testing and advanced TPU compounding.