HiVis LW Cool-Breeze T2 Vertical Vented Ctn Shirt w/ Gusset Sleeve- LS. 155gsm lightweight cotton, twin button down flap chest pocket, two tone front & back. under arm & Type2( part-mesh) vertical back cotton mesh vents, Gusset Sleeve. Colours: OrangeNavy, YellowNavy. Sizes: XS-6XL.