Bisley Cool Lightweight LS Drill Shirt Features 2 piece contrast coloured collar with collar stays 2 flat, buttoned-down chest pockets with mitered corners Left chest pocket with pen division Back double mesh, vertical vents with natural cotton mesh Double layered yoke on upper back Reinforced, top-stitched seams 2 button adjustable full gusset cuff Contrast coloured panel on lower front and back and lower sleeves Full button-through style Underarm natural cotton mesh vents for increased airflow Bisley is one of Australia's fastest growing workwear brands.