The product of collaboration with fabric technology partner Pertex® and athlete team members Graham Zimmerman and Emilie Drinkwater, the Helium AscentShell jacket is OR's most advanced all-season alpine shell. Exclusive Pertex Shield Air 3L fabric combines Helium lightweight durability and AscentShell™ breathable comfort. High-mobility fit and low-bulk functional features provide freedom to climb higher, faster and further than ever before.
