Best alternate: Option 3. Pick it to put the plush recycled polyester up front. More exciting option: Option 2, the imperative. The Mammut Retro Beanie is a pom pom beanie knit from 100% recycled polyester plush. A fixed ribbed cuff finishes the edge, and a fixed pom pom tops the crown. What Our Gearhead(R) Experts Are Saying:"I wear it through a morning of ski laps and then a walk across the base area. The loose fit sits comfortably and the ribbed cuff holds it down over my ears."