"What Our Gearhead® Experts Are Saying: ""This vest is my go-to for cold mornings. It works perfectly under a shell when I’m skiing, but I also wear it on its own for runs or hikes. The Primaloft insulation is warm without being bulky, and I like that it’s made from recycled materials. It feels technical but still super comfortable."" We zip into the Rossignol Opside Vest when we want lightweight warmth that adapts to whatever the day brings. Breathable Primaloft® Black insulation, made from 100% post-consumer recycled fibers, keeps us comfortable whether we’re layering under a shell for storm laps or wearing it solo for shoulder-season hikes. It traps heat efficiently while staying breathable, so we don’t overheat when the pace picks up. A classic tailored fit and stretch construction move naturally with us, keeping the vest comfortable whether we’re skiing, running, or moving through town. With a PFC-free DWR coating for light weather resistance and a packable, easy-wear design, the Opside Vest is a versatile layer we bring along all winter long."