The WPa 1 original work pant in black is made from 8.2 ounce (280gsm) tensile280(TM) cotton canvas with dura500(TM) advanced nylon and polyurethane canvas abrasion panels. Dura500(TM) is a 500 denier nylon oxford treated with polyurethane for high tensile strength and performance durability. Dura500(TM) provides long-lasting enhanced tear and abrasion resistance. Specs Available with a 30 inch or 32 Inch inseam Regular fit, tapered from the knee 8.2oz pre-shrunk cotton Tensile280(TM) DURA500(TM) Advanced Nylon And Polyurethane Canvas abrasion panels Stretch back yoke and knee panels Double layer internal pocket bags Multiple utility pockets YKK nylon zip fly Stress points bar-tacks Triple needle seams MATERIALS Regular fit, tapered from the knee 8.2 ounce 280gsm pre-shrunk Tensile280(TM) cotton canvas DURA500(TM) Advanced Nylon And Polyurethane Canvas abrasion panels Stretch back yoke and knee panels Double layer internal pocket bags Multiple utility pockets YKK nylon zip fly Stress points bar-tacks Triple needle seams Available in khaki, green, navy, black