ROCKBROS Bike Frame Bag Waterproof Cycling Pack Front Triangle Storage Top Tube Pouch for Road Gravel Bikes MTB E-Bike

HIGH CAPACITY: 1.6L/1L capacity and extended design-size are big enough to store your wallet, energy gel, mobile phone, gloves, repair bike tool, power bank and so on WATERPROOF: Three-layer waterproof material: 840D Nylon + Internal PP board +TPU material and sealed adhesive zipper, which ensure the water will not flow into the bag DURABLE & STEADY: The main material 840D nylon can be highly abrasion proof and durable. The sidewalls of the bag have fiberboard supports, so it is not easily deformed COMFORTABLE & CONVENIENT: The front bike bag has a long slim body. Proper space design makes you ride more smoothly and comfortable (It would not rubs against your legs while riding). And it's portable, you can take this bike pouch easily while leaving away from your bike EASY TO INSTALL: 3 magic straps make the bag firmer on the bike frame, and is designed for quick installation and release without any other tools. Note: You can cut the backstrap yourself. Before installation, check the diameter of the top tube and check the frame for screws or fasteners