OILBLOK TECHNOLOGY. This shirt repels the toughest auto fluids, including oil and transmission fluid. This exclusive technology keeps your shirt looking new longer. RIPSTOP FABRIC. Lightweight, tear-resistant and breathable, yet 75% stronger than common poplin workwear. THE SPECS: made of 4.25oz Ripstop material comprised of 65% polyester / 35% cotton. STRETCH PANELS made from 3.8oz Stretch Knit 100% Polyester. COMFORT MEETS FUNCTION. Flex Stretch panels and underarm mesh gussets offer increased range of motion. Features a utility pocket on the left sleeve, (2) specialty chest pockets and covered snaps. TOUCHTEX TECHNOLOGY. This shirt is breathable, comfortable, stain resistant with bold colors that last.