Features Merino Sport yarn combines the warmth and moisture-wicking power of merino wool with the durability and fast-drying capabilities of polyester Engineered knit construction enhances performance with a lighter weight and clean finish Gender-specific zoned mesh-knit ventilation keeps the body dry and comfortable 3D mapping virtually customizes the fit with enhanced freedom of movement Ribbed elbows provide added durability 8.25 in. center front zipper Technical Specs Best Use: Multisport Shirt Type: Partial-Zip Fabric:53% merino wool/45% polyester/2% elastane Moisture Wicking: Yes Sleeve Length: Long Sleeves Gender: Men's