98% cotton/2% elastane.By buying cotton products from J.Crew Factory, you're supporting our investment in Better Cotton's mission to help cotton communities survive and thrive while protecting and restoring the environment; this product is sourced through a system of mass balance and therefore may not contain Better Cotton.With stretch for added comfort.Designed to be worn untucked, our Untucked fit is 1 1/4" shorter in the body and 1"" shorter in sleeves.Button-down collar.Machine wash.Import."