High durability is crucial when you are working at a fast pace. Holster pockets and ruler pockets have to stand the pressure when tools, nails and screws are taken in and out of the pockets countless times during the day. MASCOT ensures durability by using lots of CORDURA® fabric on all the exposed places, such as kneepad pockets, holster pockets and ruler pockets. CORDURA® fabric is in fact seven times stronger than cotton. We use both 1000D CORDURA® (quality 11) and the lighter 500D CORDURA® (quality 12).