SOL'S PEGASE, Polo Shirt 100% Organic Cotton Ribbed Collar With Neck Tape ,Reinforced Placket With 2 Tone-On-Tone Buttons,Short Sleeves With Ribbed Cuffs,Reinforced Side Slits,Cut And Sewn,Spare Button Sewn On Inner Side Seam,Comfortable Fit (1) Grey Melange : 85 % Organic Cotton / 15 % Viscose. About Sizes Matching, Please Refer To The Size Chart In The Product Documentation Section.