Bern Watts helmet meets ASTM F 2040 and EN 1077B standards for snow and ski, and CPSC and EN 1078 for bike and skate. Bern bike helmets are designed for all season usage and offer a winter knit liner and goggle clip that can be snapped in for cold weather or for snow sports, not included. Molded ABS shell with expanded polystyrene EPS liner enhances impact protection. Sink Fit helmet design offers a low profile fit it doesn't look like a spaceship landed on your head! You've asked for it and Bern delivers it. The Watts is a vented helmet with a visor lid that protects your head while keeping your style intact!