From the manufacturer

The Smith Descend Helmet packs the latest impact protection into a lightweight, low-profile design that lets you focus on riding more and fussing with your gear less. It combines Mips® and zonal Koroyd® for enhanced energy absorption in the event of a crash. From cold and stormy to warm and sunny, adjustable vents let you dial in the climate control to match the day. Audio-compatible ear pads help keep you connected, and our adjustable dial fit lets you fine-tune the fit and feel on the fly with one hand.

Features