OMP Blast EVO Mechanic Overalls are made from lightweight, durable polyester and cotton. Multiple pockets provide ample storage space for tools and spares. Lightweight, durable material Ideal for the hobbyist or professional mechanic. Multiple pockets provide storage for tools and parts Removable knee pads for added comfort when kneeling Arm bellows for added mobility The Blast EVO has a race suit style design with additional features required when working on vehicles. There are 2 oversized leg pockets, 2 zip closure pockets and an internal chest pocket. Removable knee pads make kneeling more comfortable and stretch panels in the lumbar and hip areas provide increased freedom of movement.