About the D'Addario 50CL000 50MM Nylon Classical Guitar Strap:
 
The D'Addario Black Classical Guitar Strap is one of the most attractive and best-selling straps in the entire line. D'Addario classical guitar straps are fully adjustable and feature a non-marring sound hole hook. Comfortable 2" wide Nylon provides support and strength for your shoulder and instrument.