The WP1 original work pant in black is made from 8.2 ounce (280gsm) tensile280 cotton canvas with dura500 advanced nylon and polyurethane canvas abrasion panels. Dura500 is a 500 denier nylon oxford treated with polyurethane for high tensile strength and performance durability. Dura500 provides long-lasting enhanced tear and abrasion resistance.Specs:Available with a 30 inch or 32 Inch inseamRegular fit, tapered from the knee8.2oz pre-shrunk cotton Tensile280DURA500 Advanced Nylon And Polyurethane Canvas abrasion panelsStretch back yoke and knee panelsDouble layer internal pocket bagsMultiple utility pocketsYKK nylon zip flyStress points bar-tacksTriple needle seams Regular fit, tapered from the knee 8.2 ounce 280gsm pre-shrunk Tensile280 cotton canvas DURA500 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