Midweight warmth backed by Polartec® Power Grid™ that maximizes the breathability and sweat-wicking power of your layering program.
Take a hike (to the summit) and don't look back until you have to look down. The men's Burton [ak] Helium Power Grid™ Base Layer Crewneck Top is made with sweat-wicking fabric to help you stay cool while you work. Polartec® Power Grid™ fleece keeps it super light and breathable, and keeps out the cold like you need it to. A close-to-skin fit means you get the flex you want on the hill.