evo.com | Burton Long Underwear Tops > The Burton Synthetic Midweight Base Layer Crew is the hardworking first layer for cold days and long missions. Warm, stretchy, and quick-drying, it keeps things comfortable under a jacket without feeling bulky. Consider it the unsung hero of the layering system. Midweight 230GSM Fabric 92% Recycled Polyester, 8% Spandex Slim Fit A slim fit with four-way stretch makes for easy layering and an unrestricted feel. Chafe-free Softlock Seams for Comfort Double Needle Stitching on Sleeves and Hem HeiQ Fresh(TM) 4-way stretch peached jersey using HeiQ Smart Temp(TM) for thermoregulation and HeiQ Fresh(TM) as a silver-free odor control. | Women's Burton Synthetic Midweight Base Layer Crew 2027 - Large Black | Spandex/Polyester