Mid-season hunts just got a lot better. The Sitka(R) Open Country Series CORE Mightweight Zip-T for men packs the features true hunters demand for high-performance gear that'll never let you down. Bi-component polyester/spandex blend delivers unprecedented comfort, while a micro-grid backer lightly insulates and manages moisture off the skin so you stay warm, dry, and ready for the crucial moment. Flatlock seams ensure lasting durability. Brushed inner face enhances comfort for easy wearing. Permanent Polygiene Odor Control Technology in the Sitka Open Country Series CORE Midweight Zip-T inhibits odor growth to keep you more undetected in the field and keep your gear fresher, longer. Sitka Core Midweight Zip Long-Sleeve Shirt Features: Bi-component polyester/spandex blendMicro-grid backerBrushed inner faceFlatlock seamsHigh-zip neckPolygiene Odor Control TechnologyMoisture-wickingHelps reduce odors; does not guarantee 100% odor elimination