Duck Camp Barnburner Merino 1/4 Zip Merino is wool, elevated. The Barnburner 1/4 Zip uses merino to regulate body heat, kill odors, and dry quickly to create the ultimate cold weather layer - Heavyweight merino wool with a bit of stretch to provide additional comfort - Zipper closure chest pocket - Low-profile thumb hole - Brushed fabric for a ultra soft-feel next to skin - Moisture wicking - Odor resistant - 95% 350g Merino Wool, 5% Spandex