The Altitude Solid Short Sleeve Sun Shirt in Navy is similar to the Navy/Grey just without the Grey armpit. The Altitude Solid Short Sleeve Sun Shirt is designed with a hidden front zipper placket with a traditional snap show collar for a polished look. This shirt is made with perforated micro-polyester blend, perforated mesh shoulders, sleeve side panels for all day comfort combined and sheer mesh underarm panels to keep you cool. This shirt will be your go to for everyday schooling or clinics.