The Perfect Fit With The Phase Helmet, Now Available With An Optional Mips Liner For Increased Protection. Subtle Contouring And Perfectly Placed Active Matrix Ventilation Combine For Under-The-Radar Styling, Functional Fit, And Supreme Comfort.Helmet Features:- Baseline Audio System- MipsSpecifications:- Helmet Construction: Hard-Shell- Helmet Liner: Full Wrap- Helmet Fit System: K2dialedâ„¢- Helmet Venting: Active Matrix- Product Weight: 490gTechnologies:Hard Shell Construction:- Hard-Shell Helmets Are Built To Last And Will Look Good No Matter How Many Trips They Make In And Out Of Your Gear Bag. Hard-Shell Helmets Protect You From Impact Thanks To Lightweight Eps Foam Bonded To An Injection Molded And Durable Abs Shell.Full Wrap Liner:- A Comfortable, Washable, Full-Coverage, Breathable Liner Design That Wicks Away Moisture To Prevent Overheating And Seamlessly Integrates Fit And Audio Systems.K2dialedâ„¢ Fit System:- The K2dialedâ„¢ Fit System Creates A Custom-Fitting Helmet No Matter What Your Head Shape Is. An Ergonomically Inspired Three-Point Adjustable Interface Maximizes Fit And Customization With The Twist Of A Dial. This Allows For The Ultimate Convenience Of Being Able To Make Fit Adjustments On The Fly.Active Matrix Venting:- Climate Control At The Flip Of A Switch, Active Matrix Venting Allows You To Regulate The Airflow Of The Helmet Vent System With The Push Of A Finger.Baseline Audio Systems:- Pre-Installed Audio Kit With A Low-Profile Speaker That Easily Connects To Your Mobile Device Without Hindering The Fit Or Comfort. The On-Cord Controller Is Designed For On-The-Go Usability At Your Fingertips For Talk Or Tunes.