Based on another review I was on the lookout for this. First ride with it I almost lost the light several times. On bumps it slides up on the fabric strap on my saddle bag. I stopped to check it several times on a 12mi ride. A couple of times, it had slid up so far it was barely hanging on. I was on a road bike. If I were mountain biking the light would have surely got thrown off. I've never had this issue with any other taillight attached to a saddle bag. This metal clip is very smooth. I suspect it's designed for clothing and not a saddle bag. For now, I'm going to use small rubber band around the bottom of the clip and light to secure it.

Lost my new Stix taillight off the saddle bag on my bike on a road ride the first time I used the fabric clip. Just use the strap that comes with the Stix, I had no issues with the first Stix taillight I had for approx 7 years.

Works Like a champ on my rear bike bag. Light and functional.

Works great

Lightweight and simple design

Convenient for clipping onto bags and clothing.