versatile, lightweight all-mountain helmet from oakley. with its lightweight in-mold construction and secure 360° fit system, the oakley mod 1 makes it easy for you to set the perfect and comfortable fit. an integrated ventilation system helps to keep you comfortable, even in heated situations.the flat and discreet design was inspired by the classic skate-style helmet. the oakley mod1 helmet is an all-mountain, versatile helmet that offers simplicity with premium functionality no matter where your mountain adventures take you.linerthe removable liner and ear pads let you wear your goggle comfortably under or over your helmet and easily machine clean.fit systemthe mod 1 uses the new 360-degree boa® closure system, which offers full all-round comfort while securing the helmet's fit. it is lightweight and can be adjusted precisely with one hand and in any situation. the magnetic fidlock® buckles make adjusting and putting on the helmet very easy.