Meet the Quandary Brimmer: synthetic materials create a comfortable and soft fit to last through out the day, Patagonia's odor control technology keeps you smelling fresh no matter how hard you work or play, durable water repellant coating will keep you dry, and their moisture wicking technology will keep you comfortable on hot sunny days. Fabric:Crown and brim: 4.2-oz 95% nylon (65% recycled)/5% spandex with a DWR (durable water repellent) finish. Headband: 2.3-oz 100% Recycled polyester double knit with miDori(TM) bioSoft for added wicking and softness, and HeiQ(R) Pure odor control.Fabrics are certified as bluesign(R) approved. Fair Trade Certified(TM) sewn