What Our Gearhead® Experts Are Saying:"I like this jacket because it works just as well under a shell as it does on its own. The recycled nylon shell holds up to everyday wear, and the down insulation is super warm without adding weight. The mock neck is a nice touch—it layers cleanly and gives just enough coverage on cold days."We’re all about layers that do it all, and the Marine Layer Sporty Nylon Puffer Mock Jacket is one of our favorites for year-round versatility. Built with 100% recycled nylon, this jacket is tough enough for daily wear while keeping sustainability in mind. The RDS-certified down insulation delivers lightweight warmth that packs easily and feels cozy whether we’re hiking, skiing, or heading into town. We love how the mock-neck design keeps the chill out without the bulk of a hood, making it easy to slide under a shell on stormy days or wear solo when skies are clear. With zippered hand and chest pockets for stashing the essentials, this puffer keeps us comfortable and ready for whatever adventure comes next.