The MTF Micro Elite Original II Long Underwear Top, from performance apparel manufacturer Hot Chillys, is a comfortable, form-fitting, moisture-wicking base layer. Made from a polyester/Lycra blend, this Crewneck Long Underwear Top is soft and constructed with flat seams to prevent skin irritation. Wear this top on its on in milder weather for a fashionable and flattering look. Hot Chillys' name and signature chili pepper logo are a felt embellishment heat-sealed on the left side of the bottom hem. Product Features:Can be worn as a very warm base layer, Flat seam construction eliminates abrasion and skin irritation, Fitted long sleeves on this Hot Chillys top keep cold out, Drop tail hem will keep snow and cold air out, Warmer than the MTF 300 AM line, but not as warm as the La Montana line, Constructed with Lycra for a snug fit, Garment fits close and moves with the body, Tightly looped MTF fibers trap warm air, 30 UV Protection.