Compression T-shirt Under Armour HG LS. Compression T-shirt Under Armour HG LS. The men's long-sleeved compression T-shirt from the original Heatgear material is suitable for all sporting activities. The highest comfort is ensured by used technologies and flat seams. This compression t-shirt is designed to become your second skin. Ventilation panels in strategic locations also help this purpose. Distinctive design with a contrasting colour logo. Technology: Moisture Transport System (Wicks sweat away from your body to the surface of your clothes, which makes it easier to dry and keeps you longer), Anti-Odor (keeps the upper fresh by preventing the growth of odor-causing bacteria), HeatGear (unique highly breathable material, Fast sweat), 4-Way Stretch (lightweight construction that stretches in both transverse and vertical directions to increase mobility and accelerate drying), UPF Protection (built-in protection for your skin from the sun. It blocks UV-A and UV-B radiation), Strategic Ventilation (ventilation elements placed in the garment at strategic locations in which the body