Regatta Great Outdoors Mens Adventure Tech Breckenridge Short Sleeve Check Shirt Polyester, , Button closure The Breckenridge is our mens lightweight checked shirt designed to keep you feeling comfortable and dry on warm, summer days. Its made using airy woven fabric to efficiently wick moisture away from the skin and has a streamlined, sporty fit. Regatta Mens sizing (chest approx): XS (35-36in), S (37-38in), M (39-40in), L (41-42in), XL (43-44in), XXL (46-48in), XXXL (49-51in), XXXXL (52-54in), XXXXXL (55-57in). 100% Polyester.