Review on Waterproof Bike Triangle Bag by ROCKBROS - Under Top Tube Bicycle Frame Bag for Convenient Cycling Accessories Storage by Calvin Chavva

I love the bag! feels sturdy and was very easy to assemble. Love the fact that you can swap out the straps on the bag to mount on the front or back of the bike frame. The zippers are also nice and sturdy. The left pocket is narrow, ideal for energy packs/bars or keys. The right pocket will hold most of your belongings. Enough space for a spare inner tube, bike lock, jacket, provisions, etc. I also have to test the water resistance. If I had to have 1 small minus, then sometimes it takes both hands to close a bag. closes when fastened to the front of the frame, but this can be remedied by putting something in the pocket to prevent it from wrinkling when you try to close it.