Review on CUCYMA Waterproof Motorcycle Backpack: Carbon Fiber Hard Shell, Reflective Strip, Helmet Storage, Large Capacity, Stealth Holder, Ideal for Motocross Racing and Riding - Turtle Bag Expanded Capacity, Thickened Version by Evan Calvert

The left zipper didn't open / didn't close, only the right one after about 2 weeks of use. I tried the left zipper several times to see if it would start closing the threads and in less than a month it completely detached from one side of the zipper. I would not recommend this product, for the price it shouldn't be. When the zip is fully closed, the zip will begin to unzip on its own at one of the two ends at the bottom where the zips start, and then eventually open the entire bag. This is not a product worth what they are asking for.