The Smartwool Merino Base Layer Longsleeve in Peach Orange Red is a fitted T-shirt for women, made of lightweight and stretchy Nylon and Merino Wool. It features a round neckline, raglan sleeves, and a pullover closure. This base layer is perfect for outdoor activities such as skiing, hiking, and running in fall, winter, and spring. It is machine washable with medium fabric wash. The Smartwool 150 Merino Base layer is a classic and modern piece from the Smartwool product line, suitable for travel, casual, and activewear occasions.