This clever technical top from Patagonia is made using recycled polyester and30% Naia® Renew (a blend of renewable wood pulp and postconsumer plastics) spun jersey with MiDori® bioSoft for added wicking and softness.Plus it is Fair Trade Certified™ sewn, so the people who made each top are paid a premium for their work. A great top for all the active and eco focused people who want more from their clothing.