SOL'S PLANET MEN, MEN'S POLO SHIRT, 100% organically grown cotton PIQUE 170, Ribbed collar , Taped neck, Reinforced button placket, Short sleeves, 2 tone-on-tone button placket, Straight bottom, Cut and sewn, Spare button sewn on inner side seam. About sizes matching, please refer to the size chart in the product documentation section.