Levi's 511 Men's Black Denim Jeans 33 x 32 Re-enforced Crotch Straight Zipper

Levi's 511 Men's Black Denim Jeans 33 x 32 Re-enforced Crotch Straight Cut Zipper Fly. Jeans are pre-owned. Please see all photos for visible condition. Could be considered unisex. Back of left side of waist has a strap type opening - not sure what this is for perhaps a tool-see photo. The fabric has a spotted dyed type look by intent of Levi's I believe. Rise approximately 10 inches.