The Smith Optics Vantage MIPS Snow Helmet - Men's is a durable helmet for spending time on the mountain this winter. Designed with KOROYD and Mips technology, safety is paramount in this hybrid shell construction. A total of 21 vents allow for fine-tuning the adjustable airflow, so you can open them up when you start to sweat or close them when the cold is too much. Dial in the fit at any time with BOA 360 Fit System so it stays put without squeezing your noggin too tight.