The My Little Pony 20% Cooler t-shirt delivers on its promise to make you 20% cooler. While also making friendship cooler in record time! My fellow bronies, show your affinity for My Little Pony and order yours today! This black, standard fit shirt is made of 100% cotton. Be sure to chec k out our Size Chart to get an idea of the average size and dimensions of this Rainbow Dash 20% Cooler tshirt style. Check back often for some of our new My Little Pony clothing and other Friendship Is Magic merchandise at great prices only at AnimationShops.com.