VELMIA Triangle Bike Bag waterproof and reflective with plenty of Storage I Bike Frame Bag for Bicycle Lock, Tools or Jacket I Bike Pouch, Bike Bags

this bag holds it all. my tools...innertube co2 tire filler...and the kitchen sinkthe extra pockets secure extra keys and some paperwork.it seems well build and waterproof.worth the price.

3 waterproof zippered storage compartments.Each compartment is a different size. The two smaller compartments have a zipper that runs horizontally across the top, The largest compartment has a zipper that runs across then down for a large triangular opening. This compartment easily holds a 20 ounce Gatorade bottle. This bag has plenty of storage capacity, yet is narrow enough that it does not interfere with cycling. It should fit all standard full size men's bikes. I did have a fit issue with my 17" frame hybrid bike. Because of the smaller frame the bikes top tube runs down at a steep angle. The bag easily cleared the front derailleur cage by at least one inch. However the bag was squeezed by the top of the water bottle cage. I bought another water bottle cage which was a half inch smaller. They were both designed for a twenty ounce bottle. With the new one, the bag barely touches the cage, with no indentation. When I insert the bottle into the cage, the cage expands and slightly squeezes the bag. But I consider this to be a minor issue and because I otherwise like the bag, I have decided to keep the bag. By the way, another reviewer complained that the straps seemed rough and that she thought that the straps might scratch her paint. I think that the reviewer was mistaken. The rough side of the straps is the Velcro side; that stays on the outside. The inside of the straps are smooth and should not cause any problems. The straps are long enough to accommodate most bikes and are very easily trimmable with a pair of scissors. I removed about two or more inches from each strap.

Works well for my purpose. Got it to carry a spare tube, tire levers, patch kit, and a portable air compressor; everything fits perfectly. Good quality bag for the price that fits perfectly on my ebike.

I'm not a pro. I look forward to my daily road bike rides for enjoyment and exercise.The Velmia Triangle Bike Bag gives me confidence that my cell phone, smart watch, Garmin bike computer and rear radar unit will be protected from any rainfall. In good weather the Velmia Triangle Bike Bag stores my cell phone and wallet in a space that does not interfere with my pedaling or my comfort.The Velmia Triangle Bike Bag fits perfectly even though the triangle of my road bike also has a Topeak Road Morph Pump mounted in it. If I need hydration during my ride, I use a Camelback Hydration Pack which has extra space for items I might want to secure when off the bike.Close examination of the Velmia Triangle Bike Bag reveals quality workmanship and attention to detail. I was impressed. The Velcro straps do hold securely when I hit bumps or rough road surfaces. They work on round or elliptical tubes and do not slip down or forward if mounted in the upper right hand corner of the triangle.

Good quality - glad I bought it - more spacious than it looks - use it mountain biking so it gets slammed and stays firmly attached!

I rarely write reviews; however, I highly recommend this triangular bike bag. It perfectly fits my mountain bike frame, with ample strap options, and provides easy access to a 20 ounce Hydroflask water bottle. The bag material holds its shape, without being too firm or soft. I can’t testify to the waterproof capabilities yet; but, it seems to be made to be resistant. The zippers are covered to avoid dangling.I place my bike lock keys in the small front pouch, my cell phone in the back pouch, and my concealed carry, wallet, multifunction tool, and long sleeve shirt in the main pouch. I could switch out my gun for my bike lock, which I keep on my seat stem.The bag neatly fits below my frame, without impeding my legs. Overall, it’s a great fit and seems to be well made.

This is a well constructed bag that will hold a reasonable number of extra items while maintaining an aerodynamic profile. It fits well and attaches easily to the back frame. Two things to consider, though. You cannot use a second bottle holder with the bag attached, and you can't mount the bike on a carrier with the bag in place. These are not major detractors for me, however, since I rarely bring along a second water bottle, and you can keep the bag off the bike until the transport phase is over. Overall I am very happy with this bag.

I really like the bag -- it is spacious, well-made and has an internal frame to maintain its triangular shape. Where it fails -- in my opinion -- are the straps used to secure it to the bicycle frame. The straps seem cheaply made, but more importantly, the inside of the straps that contact the bicycle frame is very rough and eventually will wear on the paint/finish of the frame. Not the biggest issue for all bicycle owners, but something that should have been thought through better in the roll-out of this new product. I am returning the item for this alone.