19L Reflective Bike Rack Bag Water Resistant Cycling Pannier Saddle Shoulder Bag with Rain Cover 4-in-1 Versatile Bag Accessories for Travel Commuting Shopping Outdoor Cycling Night-Riding Fitness
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Availability:
Only 3 left in stock, order soon!
Arrives
Monday, Jun 8
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Style: Reflective Gray Silver
Features
- Extra-Large 19L Capacity for Bike Packing & Day Trips Carry more than standard 13L bags: ideal for extra biking gear, a change of clothes, or even as a compact duffle for the gym. Fits helmets, tools, snacks, and layers great for long outdoor adventures, hiking, or e-bike commuting.
- Water-Resistant & Splash-Proof ProtectionMade with water-tight fabric that beads off rain and moisture. Your phone, keys, and e-bike battery stay safe from splashes and light showers. (Note: without raincover not submersible )
- 4-in-1 Versatility: Rack, Backpack, Sling, Luggage TagSecure bike rack bag Hands-free rucksack, Quick-grab shoulder duffle, Travel-ready add-on for suitcases, Perfect for cyclists, commuters, and hikers."
- Universal Fit for Most Bikes Including E-Bikes & Fat Tires Strong straps and buckles keep the bag snug on specialized bike accessories friendly racks. Works with electric bike rear racks, hybrid frames, and city cyclesno slip, no sway.
- Reflective Safety for Night RidingChoose high-visibility reflective style for extra safety. Added reflective strips and taillight loop help you stay seen after dark whether youre stuffing the bike boxafter a ride or crossing city streets.
Color: Black
Size: 19L
Brand: WINPRIM
Material: Polyester
Vehicle Service Type: Bicycle
Color: Black
Size: 19L
Brand: WINPRIM
Material: Polyester
Vehicle Service Type: Bicycle
Pattern: Solid
Mounting Type: Rack Mount
Strap Type: Adjustable
Capacity: 19 Liters
Closure Type: Buckle
Handle Type: Backpack-style handle
Shell Type: Soft
Automotive Fit Type: Universal Fit
Model: Winprim
Item Weight: 2.75 pounds
Package Dimensions: 17.32 x 11.06 x 4.53 inches
Item model number: WP-BCY002-2
Date First Available: May 13, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Reflective Gray Silver
It exceeded my expectations. I won't say it's perfect because everyone has their own standards, and those are usually influenced by their needs, but for mine, it's more than enough. I bought it because I needed something waterproof, or at least water-resistant, where I could carry the essentials for my e-bike, like the battery, charger, mini air pump, and tools, plus other small things like a raincoat or umbrella. You never know when an accident might occur on countryside roads that requires any of those items. More than anything, I needed a bag that I could easily remove from the bike and carry with me. Since I don't have a safe storage place for the bike, I have to leave it in my trunk, not even in a garage, but out under the sun. This means I need to take the battery off every time I use it, and that would be cumbersome if I had to carry it by hand or if I couldn't detach the bag at all. This said, I WANTED it to be a backpack format, since I don't like any of the other carrying styles (cross bag, handheld, etc). Again, not perfect, since they didn't take comfort into account. The straps aren't padded so it's a bit uncomfortable, but only if the bag is heavy, if it's light it's not much of a problem. Another thing is the flap that allows you to put a reflector on, I don't really love the concept since you need to unstrap the bag every time you want to open it, but I can get used to it, so no big deal. What I really love is the space. the bag is the size of a normal backpack, and is more than enough to put my helmet in, which was actually the main purpose I bought the bag for, as I don't like leaving my helmet with the bike when I need to run an errand. My helmet isn't a basic one, but one with security lights, and some other time I'll probably get one with a security camera, so it's quite risky to leave it with the bike, but extremely uncomfortable to carry it by hand, hence the reason why I needed the extra space. As a plus, the bag is quite reflective, which helps me feel safer, as I ride it more often at night. Overall, I highly recommend this bag for anyone who, like me, needs a water-resistant bag with extra space and prefers it to be backpack style instead of a shoulder or cross-body one.
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Reviewed in the United States on November 12, 2025 by Ashli
Style: Black-1800d
I love this so much. Hold everything I need. I can strap my huge water bottle to the top, so I don’t need to add a holder to my bike. Lots of nice pockets to keep my heys and stuff in. Backpack straps and carry handle are super convenient as well. Easy on and and off the bike. Quality made.
Reviewed in the United States on December 31, 2025 by Amazon Customer
Style: Black-1800d
It feels very well made.
Reviewed in the United States on February 6, 2026 by Ed
Style: Reflective Gray Silver
So far it is great. I’m going to use to for my camera when I ride my ebike. Easy to get to if I see something in want to take a picture of.
Reviewed in the United States on January 13, 2026 by keith carter
Style: Black-1800d
Great backpack worth buying it
Reviewed in the United States on January 16, 2026 by Víctor Rondon
Style: Reflective Gray Silver
An excellent rack-bag for commuters! The main compartment will even hold a laptop (mine fits and has a 15.3" screen, which seems about the biggest that will fit) and it will also hold a pair of shoes (if you are an office commuter then likely you would need work-attire in the bag). The top compartment is shallow and good for cell phones and other items you want to keep on top. The triangle shaped side compartments are a bit wider and would be good for battery banks, shower items such as soap, shampoo, deodorant and other misc stuff. The entire bag is water resistant, and if you encounter serious rain there is a rain cover in a zipper pouch on the bottom. The gray areas on the top and sides are reflective so in dark conditions it will really show up in headlights. It's also very well made, and should last a good long while. A neat feature for commuters is the top handle (like a small suitcase) for carrying it short distances, and if you have longer walk ahead there are hidden shoulder-straps in a pouch on the bottom, and it converts to a backpack. This feature also means that you don't really need to carry it on a rack, you can just wear it. This would also be a great bag for heading to the gym, the main compartment will hold a set of shoes and workout clothes. And on top of the shallow top-compartment it has an adjustable net-style bungee cord that you can use quickly stash arm warmers, rain-shell and other soft items. It's made to fit on a wide variety of racks, having various straps with adjustable buckles, and there are even two velcro-straps on the bottom corners. My only nitpick is that I wish it had two more velcro straps on the top corners (for a 4-corner velco-strap rack mount, without those it's a bit more difficult to get securely mounted to my rack). In fact, that's my only nitpick. It's price is very reasonable for such a versatile bag. I give it a solid 4 stars.
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Reviewed in the United States on November 25, 2025 by MattC MattC
Style: Black-1800d
Lots of storage compartments. Multiple uses, bike bag, backpack, hand carry bag. Very well designed and constructed. Highly recommend this product.
Reviewed in the United States on November 19, 2025 by Sandy
Style: Reflective Gray Silver
Working great so far and the zippers are higher quality than the last one I bought that last a year, not the same brand. Impressed so far!
Reviewed in the United States on October 9, 2025 by Amazon Customer