A distinctive color combination of navy and mint makes this FJ sweater stand out. The sleeves feature an argyle pattern. - Brand: FJ - Colors: Navy, Mint - Size: M - Material: 40% Polyester, 20% Wool, 20% Acrylic, 20% Nylon It's thin and won't interfere with your swing. It's warmer than it looks because it contains wool. Thank you for looking.