The Smith Women's Arrival Mips Snow Helmet will never go out of style. The Arrival delivers the proven fit and function of Smith helmets, all with a ladylike polish. It has a lightweight in-mold construction and regulator adjustment climate control for all day comfort. MIPS is used to reduce the rotational forces to the brain in the case of an oblique impact. Smith helmets are created to absorb direct impacts very efficiently and when combined with MIPS, Smith helmets absorb oblique forces better by allowing a small rotation of the outer shell relative to the liner.