Designed to regulate body temperature as the thermometer rises or plummets, the Sitka Mens GORE OPTIFADE Elevated II Core Midweight Half-Zip Shirt brings comfort and versatile performance. This Sitka shirt sports 100% polyester comfort-stretch midweight fleece fabric for multi-season microclimate management. A half-zip front with zip-through collar grants custom ventilation or coverage. Permanent Polygiene fights odors to neutralize games natural advantage (helps reduce odors does not guarantee 100% odor elimination). Low-profile flatlock seams eliminate the chafing common on ordinary hunting shirts, completing the Sitka GORE OPTIFADE Elevated II Core Midweight Half-Zip Shirt for men as the ideal next-to-skin layer for a wide range of conditions and activity levels. Machine wash. Imported. Sizes: M-2XL. Camo pattern: Optifade Elevated II. Type: Pullovers.