hope that the band won't slip of the shoulder. I have used it for a bagsack because the shoulderband slipped of my shoulder. I give 5 star for the service, but i don't contact the seller. Delivery was within 1 month, that's very fast, in my eyes :-).
good item but a little bit thick. I wanted to make my own anti friction band. I'll see when I'll use it and leave another feedback.