First Lite Wick Short Sleeve Crew - Men's Specter Small. The airy 150 gram Aerowool construction features 37.5 active particle technology and will dry rapidly without compromising durability or odor resistance. This layer also features 125-gram Aerowool mesh panels to maximize ventilation during active hunts. The Wick Ultralight 150 is the new standard for quick drying odor-resistant ultralight hunting clothing. Ultralight 150 Aerowool construction combines the finest 17.5 micron merino wool available with 37.5-activated nylon fibers to create a super-charged fabric with incredible performance benefits. What you get is enhanced odor resistance improved durability and moisture wicking and a fabric that can cool you down when you're heating up and warm you up when it's cooling down. Specifications for First Lite Wick Short Sleeve Crew - Men's: Manufacturer: First Lite Sleeve Length: Short Sleeve Age Group: Adults Apparel Fit: Athletic Gender: Male Application: Hunting Shirt Style: Crew Shirt Fabric/Material: Merino Wool/Nylon/Spandex Weight: 6 oz Features of First Lite Wick Short Sleeve Crew - Men's True to size: Purchase your normal size to wear over or under other layers Exclusive 37.5 Active Particle Technology Exhausts moisture and maintains core body temperature Traps odors (human signature) and releases them when laundered Exhausts moisture and maintains core body temperature Traps odors (human signature) and releases them when laundered 17.5 micron ultrafine Merino wool Mesh vent panels to maximize ventilation Short sleeves for hot weather hunts Modified raglan sleeve moves seams out from under backpack shoulder straps Flatlock seams for next-to-skin comfort Machine wash line dry Naturally UV absorbent to eliminate shine Package Contents: First Lite Wick Short Sleeve Crew - Men's First Lite 42384: Wick Short Sleeve Crew - Men's Specter Small