■ S/M size: Head circumference approx. 21.7 - 22.4 inches (55 - 57 cm); L/XL size: head circumference approx. 23.2 - 24.0 inches (59 - 61 cm); Weight: approx. 1.2 oz (34 g); Material: 100% merino wool *Note: The color may differ from the actual product depending on your monitor settings. Depending on the production time, size and manufacturer circumstances, the specifications may differ from the photo. The size is for reference only, and may differ from the actual product depending on the measurement method.