Highly breathable, spreads and evaporates moisture evenly. 3-D articulated, flat seamed construction fit. Lycra binding cold-weather seal with windbloc insert protection. 88% polyester, 12% spandex, 4-way power stretch. Skully: Ideal for layering under a helmet or wear alone, mesh panels for added breathability, covers ears. One size fits all.|Multi-Tasker: Face protection, for under helmet or alone, 98% wind/waterproof, lycra binding around face seals out the elements.