The Hot Chilly's Micro Elite Crewneck Baselayer Top is warm and form fitting. The Mec Crewneck features a crewneck with self binding, seams set away from shoulder for added comfort, moisture management, Pure by HeiQ antimicrobial, 4 way stretch, and UPF 30. This Micro-EliteChamois top is a leader in body fit for over 30 years by incorporating tightly blended fibers. This baselayer was meant to keep you warm and comfortable for cold weather days. | Hot Chillys Women's Mec Crewneck Baselayer Top