The versatile, SmartWool Knit Mitt is made of a lightweight merino wool blend for ease of movement. Wear alone, to take advantage of the built in touh screen capability on the thumb, or layer under your favorite shell mitt, for that extra layer of insulation in your handwear layering system. Versatile, lightweight knit for ease of movement. 48% acrylic, 46% merino wool, 5% nylon, with 1% elastane added to help hold its shape. Rib knit cuff finishing for bulk free fit. Knit in touch screen capability on thumb. Comfortable, no itch, warm.