Certain locations offer a better grip than others. The best spots we've found are:
- The edge of a sewn seam, like on your jeans pocket.
- The edge of a zipper, like on the pocket of ski jacket.
- Nylon straps, like on a backpack.
- On the other hand, some locations that aren't quite as secure are very thin fabrics and fabric edges without a sewn seam.
Here is an Instagram post showing how the clamp works. Hopefully, this helps, but please let us know if you have any other questions.