A moisture wicking performance base layer is essential for a good day out in the cold. The men's Oakley Base Layer Top is designed to wick moisture and retain heat while also providing next-to-skin comfort. Light to medium weight fabric, plus flat lock stitching, makes this layer one you don't want to forget. Moisture Wicking, Flat Lock Stitching, 94% Polyester / 6% Spandex, Fit: Tight, Warranty: One Year, Wind Protection: No, Material: Synthetic, Weight: Light, Type: Top, Wicking Properties: No, Water Resistant: No, Recommended Use: Snow, Antimicrobial: No, Anti Odor: No, Quick Drying: Yes, Moisture Wicking: Yes, Model Year: 2020, Product ID: 619823, Model Number: 434437 02E M, GTIN: 0190645768899