I have severe neck issues. Probably from all the years as a professional dancer whipping my hair back-and-forth. Anyway, I haven’t been able to find a good camera strap that will level off the weight of wearing two cameras for up to 10 hours a day. My friends had the original hold fast and had mixed reviews for it. But when I noticed a skinny version with some updated design, I decided to give it a try. I showed it to my orthopedic doctor and my physical therapist, and they said this actually might be, something that could work to alleviate some pain. And after I got used to it, it actually did. The leather is incredibly stiff in the beginning so you have to be patient and adjusting it can be really challenging but once you get the hang of it it’s not so bad. I got the single strap as well and I am very happy.