Kevlar and Cordura are used to provide exceptional strength in these work trousers. Cordura hammer loops. Removable multi-pockets. Kevlar kneepad pouches. Cordura hem guards. YKK metal zip fastnening with metal button waistband attachment. Cargo pocket with multi-sections and stud fastnening.Washing Instructions40? machine wash. 1 dot iron. Do not bleach. Suitable for dry cleaning. Do not tumble dry. No industrial launder