I recently talked about the OPTECH strap that I was using and a few of my photographer buddies suggested that I also look at the UPstrap, so I did. I ordered an UPstrap and finally got a chance to try it out. I gotta say that I was a little skeptical about any strap claiming to not slide off your shoulder. I've heard those claims before. However, I have to say that the UPstrap lives up to its claims. I put it on my Nikon D7000 and no matter what I did (jumping, dancing around, running, etc.) it stayed in place. Wow! While it's not the prettiest strap out there (it's really plain and rubbery looking), it's now my new favorite! Can't wait to do my next photowalk with this one.