evo.com | Burton Long Underwear Tops > The Burton Synthetic Midweight Base Layer Crew Top reacts to your actual body temperature, wicking harder when you're working up a sweat on the skin track and holding heat when the lift line slows you down. Thumbhole cuffs and chafe-free seams handle the small stuff, and HeiQ Fresh odor control means it can pull multi-day duty on a hut trip without turning into a problem. DRYRIDE Ultrawick(R) Midweight Fabric Versatile, breathable warmth for cool to cold weather conditions, this midweight stretch jersey fabric features cotton-like comfort, but with performance that's superior to your favorite t-shirt. Regular Fit Regular fit is just right: not too tight or too baggy. Hidden Thumb Hole in Seam Chafe-free Softlock Seams for Comfort | Burton Synthetic Midweight Base Layer Crew Top Men's 2027 - X-Large Black | Cotton