This strap is Very comfortable, it is elastic, which feels great when wearing it, and looks and feels very sturdy, and the elastic cords are all adjustable with an Excellent "runner".
I do find the leather strip a bit awkward to attach it to my clarinet, it is a little strange to put the tiny screw for the thumbrest into the slot. But it does feel great once it's on there, with my thumb under the leather strap, my thumb is kind of nestled in between the clarinet boby and the strap. It feels very secure, and the clarinet is certainly not going anywhere and you won't loose your grip!
All in all a Great accessory, I would recommend this to Anyone.