Sizes: XXS - 5XL, 7XL; Fabric: 100% Square Weave Cotton Ripstop - 145 gsm; Features: Mesh venting to increase breathability in the under arm, upper back, front side seam and back side seam,Mechanical stretch to give you more freedom of movement,2 Chest pockets with pen partition,3M 8910 breathable reflective tape in hoop configuration,Reinforced at all key stress points with bar tacks;