Take to the slopes with a high-performance helmet featuring lightweight In-Mold AerocoreTM construction, an adjustable dial-fit system and Snapfit SL ear pads. Fourteen vents and AirEvac 2 ventilation regulate your temperature with ease, so you can keep skiing or boarding all day.This version features a Multidirectional Impact Protection System, or MIPS, which uses slip-plane technology inside the helmet to reduce rotational forces that can occur in certain impact situations. A cozy long-fleece liner ensures that you are comfortable and warm. Complies with ASTM F 2040 and/or CE EN 1077 alpine ski and snowboard helmet safety standards AerocoreTM design using Koroyd® material increases airflow, improves temperature regulation and anti-fog capability, and enhances impact resistance Low profile In-Mold designs combine a polycarbonate shell with EPS liner to provide superior impact protection and light weight Regulator Adjustable Climate Control—Easy to use slider system makes it simple to change the amount of airflow even with gloves on AirEvac 2 Ventilation drives the warm air away from the goggle through external vents and internal channels in the EPS liner Adjustable Dial Fit System (DFS)—Utilizes intuitive righty-tighty and lefty-loosey adjustment for quick, easy, on-the-fly adjustments and a comfortable fit every time MIPS Brain Protection System—the shell and liner are separated by a low friction layer that allows the helmet to slide relative to the head in and angled impact Compatible with Outdoor TechTM Audio Systems (sold separately) Removable, machine-washable ear pads Polystyrene/polycarbonate/ABS plastic Imported