Throw on the Riley Top and be ready for anything, whether youâre burning through a few miles around the track or chasing your PR. The Riley is designed to keep its shape and feel great because itâs made with Tencel blend fabric. Youâre sure to love the stylish contrast thread and the scooped hem, too. Oh, and we added mesh panels to keep the air flowing around your shoulders and back. This top rules, no matter what color you choose. We recommend all of them. Also available as a tank top. Built on a foundation of durability, quality and value, 5.11 Tactical leads the industry in delivering functionally innovative gear, head to toe.