Warmth and layering performance is what the Terramar Ecolator is all about. The high loft grid channels create an ideal microclimate that efficiently traps air and effectively allows circulation. Versatile enough to be worn as an outer or inner layer the Ecolator Men's Crew is the perfect top for all your cold weather endeavors into the mountains or woods.Read more
Ultraviolet Protection Factor (UPF) is a measure of the percentage of ultraviolet sunlight that reaches your skin through a given fabric, estimating the additional amount of time you can spend in the sun with a certain garment on. (UPF 25 meaning you can withstand 25 times the amount of sun you could without protection).