If it's the most lightweight helmet you're after this season, Alf has the latest in his review on the Anon Helo 2.0
WEBSITE: Anon Helo 2.0
WHAT THEY SAY: "The men’s Anon Helo 2.0 helmet features in-mold shell construction for the best in comfort with a sleek, low-profile fit and feel. A 180° Boa® Fit System provides easy, on-the-go fit adjustment with the turn of a dial, and the Fidlock® magnetic snap helmet buckle lets you open or close with one hand, even if you’re wearing gloves. The expedition fleece liner and ear pads offer maximum warmth and moisture-wicking comfort."
WHAT ALF SAYS: The Helo 2.0 is Anon’s lightest helmet, weighing in at 370g, so it’s a good choice if you work hard when you’re on the slopes. That said, venting is a bit limited; consisting of four decent sized, mesh covered vents on the top (at the rear) and two similar but smaller vents at the very back of the helmet, so it’s easy to build up a head of steam on warmer days. None of the vents are adjustable, incidentally. If it does get warm you can remove the integrated ear pads/neck warmer, with the lining, a mix of soft padding and mesh, which is also removable for washing.