Even with the dimensions clearly spelled out, I was a little surprised at how big it was when it showed up. All the other fork bags I looked at were so tiny. But once it was on my bike, it fit perfectly. The material is good, a leather shell would have been better, but it fits well and the straps hold it in place with no movement. It’s quick to put on and take off, but I don’t think I’ll ever use the shoulder strap. I’ve already used it several times because it’s the perfect size for an overnight bag. I can fit a change of clothes, toiletries and even an extra pair of shoes.