Breathable, textured knit fabric is ultra-soft for all-day comfort.UA Siro provides greater elasticity and better regeneration, the material is extremely soft and breathable.Adjustable two-tone strap fastening.Improved back opening for more ways to wear your hair.Embroidered logo.UA Free Fit: A pre-curved visor and unstructured forefoot conform to your head for a sleek, low-profile fit.