Sitka’s Core Merino 220 can be worn by itself during the early to mid-season, or as a mid-layer during late season hunts. Its made from a double-layer of blended merino wool to promote temperature regulation to keep you comfortable throughout the day. The merino wool construction naturally resists odor to help keep you undetected, and features Sitka’s ArmorSpun reinforcements to ensure years of durability. Features of the Sitka Core Merino 220:Lightweight 220-gram, 17.5-micron ArmorSpun Merino Wool for durability and anti-itch comfortEasy-care merino wool can be washed and dried with your regular laundrySnag-preventative stitching along sleeves resists abrasion from your packZippered chest pocket safely stores your valuablesLow-profile integrated thumb holes for easy layering Sitka Gear Waterfowl Marsh CORE Merino 220 Half-Zip Pullover 600207-WL, XL