"What Our Gearhead® Experts Are Saying:""The Jorasses is crazy light—under 10 ounces—but still feels tough enough for alpine missions. I love the two-way zipper for harness access and the RECCO system adds confidence on big objectives.""When storms meet the summit, we’re glad to have the Trilogy Jorasses Pertex Jacket from Millet in our pack. Built from Pertex Shield XLight, it delivers 20K waterproof and breathable protection in a shell that weighs just 270 grams. Durable, abrasion-resistant, and compact, it’s the jacket we reach for when we need full storm coverage without compromising weight. Designed with alpinists in mind, the Jorasses Light features raglan sleeves for unrestricted mobility, a helmet-compatible hood, and a two-way waterproof zipper for quick harness access. Two high-set chest pockets keep essentials within reach, even with a harness or pack on, while adjustable cuffs and hem seal out wind and wet weather. An integrated RECCO reflector adds an extra layer of safety when pushing into exposed alpine terrain."