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. Rammy Motion Shirt In Eclipse Approximately 30In From Shoulder To Hem Model Is 6'1 And Is Wearing A Size Medium. Measurements May Vary Slightly By Size. Button Front 75% Nylon, 25% Spandex Machine Wash Imported