NEOBLU STEFAN, MEN’S POLO-NECK JUMPER, Gauge 14 – 50% RWS merino wool – 50% GRS-certified recycled polyester. Knitweight 270g/pc, ribbed polo neck, placket with 4 tone-on-tone buttons, ribbed cuffs and hem, spare button. About sizes matching, please refer to the size chart in the product documentation section.