Product Description
A convertible pannier bag backpack from FMOSBAG is a versatile 3-in-1 storage solution for daily bike commuting and long-distance touring. Built with high-density 600D PVC coated polyester, it uses a roll-top buckle closure for solid water repellency. It effectively protects belongings from rain and road mud splashes on every ride.
Waterproof & Durable Construction
The 600D PVC coated polyester fabric delivers better tear and scratch resistance than standard 500D materials. The roll-top sealed structure keeps internal items dry in heavy rain. The surface is also easy to wipe clean for long-term daily use.

3-in-1 Convertible & Organized Storage
Besides, this convertible pannier bag backpack features a well-organized internal layout. It includes a dedicated 16-inch laptop compartment, a 1.5L water bottle side mesh pocket, dual front pockets and a hidden side pocket. All your electronics, riding gear and personal items stay neatly sorted.
Furthermore, you can switch it between rear rack pannier, backpack and handbag in seconds. The mounting hardware hides in the inner compartment when not in use. An anti-theft combination lock and large reflective strips add extra safety for night rides. We also offer full OEM & ODM customization services for global bicycle gear wholesalers.
Full Product Specifications & Compliance Information
| Basic Product Information | |
|---|---|
| Brand | FMOSBAG |
| SKU | FMO-BG-JT039 |
| Original Model No. | JTMTB-039 |
| Origin | Fujian, China |
| Sales Unit | Sold per piece |
| Target User | Unisex |
| Application Scenarios | Bike commuting, long-distance touring, outdoor day trips, daily travel |
| Capacity & Dimensions | |
| Standard Capacity | 24L |
| Max Expandable Capacity | 27L (adjustable range 20–35L) |
| Net Weight | 1.0kg |
| Product Size | 30 × 20 × 45cm |
| Single Package Size | 55 × 45 × 10cm |
| Closure Type | Roll-top buckle seal |
| Material & Structural Details | |
| Main Fabric | 600D high-density PVC coated polyester, tear and scratch resistant |
| Lining Material | Polyester |
| Internal Layout | Dual front pockets, 1.5L water bottle side mesh pocket, 16-inch laptop compartment, hidden side pocket, built-in zipper pouch |
| Mounting System | Adjustable quick-release base (80–180mm mounting width), 8–12mm / 13–16mm tube adapters, 3-point fixing structure |
| Carry Accessories | Removable shoulder strap, soft top carry handle |
| Ergonomic Design | Padded back panel for comfortable long-time carrying |
| Safety Feature | Large front reflective strip for enhanced night riding visibility |
| Bonus Accessory | Anti-theft combination lock included |
| Performance & Compatibility | |
| Water Resistance Level | IPX6 water repellent roll-top structure, resists heavy rain and mud splash |
| Compatible Bicycle Models | Road bikes, mountain bikes, city commuter bikes, touring bikes with standard rear rack |
| Core Functions | 3-in-1 convertible design, expandable capacity, anti-theft lock, night reflective safety, laptop compatible |
| Factory Certification & Quality Control | |
| Factory Qualifications | ISO9001 quality system certification, BSCI factory audit |
| Material Compliance | Eco-friendly non-toxic material, REACH compliant, meets EU daily commodity standards |
| QC Standard | 100% pre-shipment inspection; waterproof test, stitch tensile test, buckle & hardware durability test |
| Packing & Shipping Specifications | |
| Single Packaging | Individual PE bag per piece; custom retail color box optional |
| Export Carton Packing | Standard export corrugated carton, customizable per order quantity |
| After-sales & B2B Service Terms | |
| Warranty Period | 12 months factory official warranty |
| Sample Lead Time | 7–10 working days |
| Bulk Production Lead Time | 20–25 working days after sample confirmation |
| Custom Service | OEM & ODM; custom pattern printing, custom packaging, structural adjustment |
| MOQ | Negotiable for fully customized orders; small-batch trial orders acceptable for stock items |
| B2B Advantage | Dedicated account manager, full export documentation support, flexible order scale for wholesalers and brand clients |
B2B Wholesale & Product FAQ
Q1: What factory certifications and quality support do you provide for bicycle bags?
FMOSBAG is a professional bicycle gear manufacturer based in Fujian, China. We hold ISO9001 quality system certification and BSCI factory audit qualification. All products go through 100% pre-shipment inspection, including fabric waterproof test, stitch tensile test and hardware durability test. We can provide full qualification documents for wholesale and brand clients.
Q2: What is the OEM customization process and production lead time?
We support full customization including pattern printing, packaging design and structural adjustment. We send design drafts within 2 working days after demand confirmation. Pre-production samples take 7–10 working days. Mass production finishes within 20–25 working days after sample approval, with a dedicated manager tracking the whole process.
Q3: What is your minimum order quantity? Do you support trial orders?
The MOQ for fully customized orders with exclusive logo and packaging is negotiable based on order details. For standard stock products without customization, small-batch trial orders are acceptable. This helps new cross-border sellers test market demand with low upfront cost.
Q4: Is this convertible pannier bag backpack fully waterproof for daily commuting?
Yes. This convertible pannier bag backpack uses 600D PVC coated polyester fabric and a roll-top sealed structure. It delivers reliable water repellency to resist heavy rain and road mud splashes, keeping internal items dry during daily commuting and medium-distance touring. Note that it is not designed for full submersion in water.
Q5: How do you switch this bag between a pannier and a backpack?
Converting this convertible pannier bag backpack takes only seconds. When used as a bike pannier, attach the adjustable quick-release base to your rear rack and lock it with the 3-point fixing system. When used as a backpack, simply hide the mounting hardware in the inner compartment and buckle on the removable shoulder strap. It can also be carried by the top handle as a handbag.
Q6: Will this convertible pannier bag backpack fit most standard bicycle rear racks?
Yes. The adjustable quick-release base supports 80–180mm mounting width, and comes with 8–12mm and 13–16mm tube adapters. This convertible pannier bag backpack fits most standard rear racks on road bikes, mountain bikes, city commuter bikes and touring bikes, and stays stable even on bumpy roads.












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