The Cirque X is lightweight (465 grams in size medium) and packs in some serious ventilation capabilities, making it an attractive option for backcountry skiers. Its active venting system—engaged by a switch up top—features 12 total vents: six oversized vents on top, two in the brim and four in the back. Overheating, meet your doom! On the protective front, varying thicknesses of polycarbonate panels are placed in areas prone to harmful impacts, and MIPS further combats the effects of rotational impacts.