The Lennox EPS 13/14 Womens Helmet from Bern Weight:17.7 oz Standards: ABS Shell with EPS Sizing: XS/S: 52-55.5cm, S/M: 54-57cm, M/L: 55.5-59cm Liner:EPS Go All Season: Yes EPS hard foam meets ASTM F 2040 & EN 1077B standards for snow & ski, CPSC & EN 1078 standards for bike & skate You asked, we answered. The Lenox, twin sister to the Watts, was designed with women in mind, complete with a smaller shell size & feminine details. We have combined our patented visor profile with 7 curved vents to create the ultimate in women's head protection. Marrying style with function, the Lenox delivers what women truly want: one core accessory that goes with everything, & takes you everywhere.