Light and packable, the Cirrus Flex is the ultimate year-round synthetic insulation. Its versatile enough to accompany you on any mountain adventure, either as an outer in the warmer months or as an insulating layer when the temperatures drop. With its hallmark fleece side panels that breathe on the climb and reduce bulk, its easy to layer and offers superb freedom of movement. Re-engineered with high-lofting PrimaLoft Silver RISE insulation, it features larger baffles that allow the insulation to loft more and retain more heat. Delivering exceptional warmth for weight, the insulation recovers quickly when wet, making it the ideal choice for your hikes, climbs, and scrambles in damp weather. Warmth You Can Move In | Down-like synthetic insulator ensures mobile warmth for mountain play. Primaloft Silver Rise Insulation | Light on warmth for year-round use, mimicking down insulation for loft-like packability that stays warm in wet weather. Pertex Quantum Shell & Fleece Sides | Windproof ripstop treated with a water-resistant coating for reliable weather protection, and stretchy Thermic side panels provide freedom of movement. Mountain Ready Features | Under helmet hood made of fleece and synthetically insulated ripstop; smooth-sliding YKK Vislon front zipper; zippered hand and chest pockets. Specs | [Best Use] Climbing, Trekking, Skiing; [Material, Lining] 20D Pertex Quantum, PFC-Free DWR; [Sides] Thermic Fleece (215g); [Insulation] 100% Recycled Primaloft Silver Rise (157g); [Pockets] 2 Zippered Hand, 1 Zippered Internal; [Weight] 380g