I put this on my lightweight 25string Celtic harp, about the weight of a solid body electric or a jumbo 12string. The harp has strap pins just like a guitar, so i've not used any cord, just fixed directly. It's comfy and attractive. At times it can slip! Guitarists may fare better fixing it to the neck with cord, as it might just be my instrument. As it slips rarely, i'm still pleased with it. I don't think it's a particular fault of the strap as it's standard fit. Very comfy padding. Feels like soft leather.