Our Intraknit(TM) fabric is 3D-knit with Merino Sport yarns to be lighter weight with a cleaner finish. This women&';s wool baselayer is perfect for a day of outdoor activity in cool to warm weather, because it will help keep your body dry and comfortable, and its fit won&';t slow you down. For all your hiking, jogging, or other athletic adventures, this top will be there for you. Features Merino Sport yarn combines the power of Merino with the durability and fast dry times of polyester Engineered construction uses knit structures to enhance performance with lighter weights and cleaner finish Mesh ventilation seamlessly knit in gender-specific zones designed to keep the body dry and comfortable 3D mapping results in near custom fit and freedom of movement while ribbed elbows provide added durability 8" (20 cm) center front zipper Knit in India: 52% Merino Wool, 45% Polyester, 2% Elastane, 1% Polyamide. Exclusive Of Decoration. Fit: Slim Style: SW016261