A traditional cap is a great choice for wind, sun and rainshower protection. Especially for those of us with eyeglasses, the cap is a great way of keeping your lenses free of droplets. Flexfit technology combines the breathability of cotton with the stretch of elastane, for a very comfortable feel. - GOTS-certified material - Sizes: - S/M = 56cm - L/XL = 58cm The F29 Flexfit Cap will develop a unique patina over time, partially due to how GOTS certified cotton is produced and dyed with much more environmentally friendly chemicals than the ones used in uncontrolled production. "F29," or Functional 29, refers to Norrøna's founding year and the functionality of the products.