About The Brand - Theory Believes The Perfect Outfit Can Change The Way You Feel. For Over 25 Years, Theory Has Developed Innovative Fabrics And Highly Functional Pieces That Feel Great And Fit Perfectly. Theory's Seasonal Collections Are Versatile, Expertly Tailored And Easy-To Wear. Sylvain Shirt In Eclipse With Spread Collar Approximately 29In From Shoulder To Hem Model Is 6'1 And Is Wearing A Size M. Measurements May Vary Slightly By Size. Button Front 95% Cotton, 5% Spandex Machine Wash Imported