I love the oilfield shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat oil field, oilfield man, roughneck, driller, oilfield trash, oilfield rig, oil rig, oil trash, drilling, oil gas, oilfield wife, hitch, hard hat, floorhand, oilfield worker, oilman Lightweight, Classic fit, Double-needle sleeve and bottom hem