The Mens Terramar Filament Silk Crew Top is lightweight yet incredibly strong. Made from 100% Pure Filament Jersey Silk, the Filament Jersey Silk Shirt is soft and supple with a natural stretch for all day comfort. This Terramar Thermasilk Base Layer features ec2 Qwik-Dri technology to lift moisture away from skin for rapid evaporation. Other features include drop contoured back hem, saddle shoulder for freedom of movement, and rib crew neck trim/cuffs with spandex. The Mens Terramar Filament Silk Crew Top is an ideal base layer.