The Classic Rugby Shirt is a sharp, hardwearing staple cut from 100% heavyweight cotton. Rugby shirts have been beloved for their sturdiness and put-together look for well over a century-by everyone from Ivy Leaguers to pioneering rock climbers. Flint and Tinder's heavyweight take is extra comfortable and durable. To keep things breathable, there are eyelets under the arms for easy airflow. Fit & Design: 3 Button placket Ribbed cuffs Heavyweight, all-cotton construction for lasting durability Underarm eyelets for added breathability Additional Details: Machine wash with similar colors on delicate cycle Do not bleach Tumble dry low or hang to dry Do not dry clean Iron on low temp