Bisley Cool Lightweight Drill Long Sleeve Shirt in Khaki. Designed to keep you cooler for longer on hot days at work. All the regular features are there, two button-down chest pockets, two-piece structured collar and full gusset sleeve cuff. Extra allowances have been made for ventilation and breathability. Two ventilated mesh panels at the back allow for greater airflow around the body, as well as underarm mesh ventilation added for this high perspiration area. The Cool Lightweight Drill shirt is made from 100% cotton pre-shrunk Drill.