My 5 string basses are heavy and I was starting to suffer back and shoulder pain when playing, and my arms and fingers would start to go numb. A year ago I bought one of these straps and the pain and discomfort has completely gone. I can play for hours without any trouble now. I now have one of these on all 3 basses, this was the last one I had to buy. Excellent, comfy and reliable straps. Very well made and strong. Only negative is that the black colour on the leather section has marked my white shirts on hot, sweaty gigs so I?ve fixed some material over the top to protect my shirts.