This is a handmade, ultra-lightweight full frame bag using CORDURA x SPECTRA diamond ripstop fabric. Reinforced core inside the body, with ripstop lining. The weight is only 230g without straps, yet it has the strength to withstand practical use. When made with X-PAC, etc., it would be around 300g or more. This is also an exhibit that serves as a product sample page. This was made for myself and has been test-ridden once. Product Details Fabric: CORDURA x SPECTRA Diamond Ripstop Lining: Ripstop nylon, Navy Right side: Zipper, YKK water-resistant zipper, #3, Black Left side: Zippered sub-pocket, mesh pocket, glove holder Please refer to the photos for the size. Suitable for chromoly frames of 490 size. Generally suitable for carbon bikes around 520 size. Attaches with 3mm rubber cord at the top, Velcro at the bottom, and the middle divider is removable, allowing it to be used as a single compartment. A glove holder is attached on the left side, allowing you to hold your gloves when dismounting. The chromoly road bike in the installation image is a 49 size, and although it's a little small when installed, it is usable. The size of the front triangle is shown in the image. It should fit if you go about -1cm from the top side of the image. If you don't know the size, please let me know the size of your frame and I will draw a flat drawing to confirm. I have a pet (dog). This product is handmade, so there may be some slight sewing errors. Thank you for your understanding.