About the D'Addario 20GL00 2.0 Garment Leather Guitar Strap - Black:
 
The D'Addario Deluxe Series sets the standard for leather straps. From basic single-ply styles to two-ply garment leather straps with soft suede backing, the Deluxe Series exudes class, style, fashion and function. All feature an exclusive tapered contour designed to prevent twisting when used with acoustic guitars. The body of the straps is 4" longer than standard straps, giving you maximum adjustability from 41”- 60” long.