100% Lambswool. Fabric: 2 Ply, 7 Gauge, Knitted, Soft Touch, Yarn. Design: Plain. Fabric Technology: Lightweight. Hem: Ribbed. Neckline: Crew Neck, Ribbed. Sleeve-Type: Long-Sleeved. Cuff: Ribbed. Fit: Regular. Fastening: Pull Over. Sustainability: Responsibly Sourced. XS: 31.5 in. S: 35 in. M: 39 in. L: 43 in. XL: 47 in. XXL: 51 in. Ref: UTWL174