BUILT FOR HOT HUNTS: The short sleeve is perfect for longer, hotter days or for layering in cooler days MOISTURE WICKING: Designed to quickly dry sweat and/or rain NO SACRIFICES: Ultralight, breathable fabric without sacrificing durability WEIGHT: 4.8oz or 136 grams MATERIAL: 120 GSM Dri-Fit Poly Stretch LAYER POSITION: Can be used for both mid-layer or outer 120 GSM lightweight Dri-Fit Poly. All the same features, the same cut as the long sleeve shirt just built perfectly for you in our short sleeve model. Sizing Chart