Giro Union MIPS Snow Helmet MIPS – Multi-Directional Impact Protection System In-Mold Construction In Form Fit System Vertical Tuning Thermostat Control Adjustable Venting Stack Ventilation    XT2® Anti-Odor Protection Padding Compatible With Aftermarket Giro Audio Systems by Outdoor Tech             Seamless Compatibility with All Giro Goggles S (52–55.5cm) M (55.5-59cm) L (59-62.5cm) XL (62.5-65cm) ALL-MOUNTAIN EXPLORER:  The Union™ MIPS comes fully loaded for all mountain freeriding and resort exploration. In-Mold Construction and adjustable venting create a lighter, cooler helmet making the Union MIPS ideal for both ascending and descending the slopes. Go the distance in comfort with XT2® anti-odor protection and the adjustable In Form Fit System. And rest easy knowing that the Multi-Directional Impact Protection System (MIPS) can provide more protection in certain impacts. Giro Union MIPS Helmet