Features: Mesh venting to increase breathability in the under arm, upper back, front side seam and back side seamMechanical stretch to give you more freedom of movement2 Chest pockets with pen partition3M 8910 breathable reflective tape in hoop configurationReinforced at all key stress points with bar tacksFabric: 100% Square Weave Cotton Ripstop – 145 gsmSizes: XXS – 5XL, 7XL