Fox Flight Hardshell Trail Bike Helmet SAFETY - Specially designed with the dirt jump aficionado in mind, The Flight Hardshell helmet is outfitted with the best protection in the game, to keep you safe no matter what. Fox's proprietary Varizorb multi-density EPS core absorbs and disperses impacts, while the ABS exterior is sturdy and durable. COMFORT - The last thing you want is to be on a ride, enjoying your day, when things start to get uncomfortable. Lucky for you, Fox is on the case. The Flux Hardshell features 8 Big Bore vents for increased airflow, to keep you cool. The M9 Multi-sector liner uses 9 different segments for an improved fit and superior breathability. STYLE - Look cool, everywhere you go. The rounded silhouette is reminiscent of old school skate helmets, and the wide variety of colors and Fox branding give it a little bit of street cred. Riding around town or on the trail, you're sure to stand out from the rest. USE - Fox developed the Flight with dirt jumpers in mind, but it can be used for so much more. Wear it everywhere- during leisurely park rides, long days dirt jumping, or even on hard, adrenaline filled trail rides; this helmet can stand up to whatever you throw at it. Life is short, go wild! DIMENSIONS - Available in sizes Small (20.5-21.3 in), Medium (21.7-22.8 in), and Large (23.3-24 in)