What Our Gearhead(R) Experts Are Saying: "This is my go-to ultralight beanie for shoulder-season hikes and ski touring. It's warm for how thin it is, layers cleanly under a helmet, and disappears in a pocket when I don't need it. Perfect for when you want just enough insulation without the bulk." We love how the Black Diamond Light Knit Line Beanie delivers reliable warmth in an ultralight, barely-there package. Made from soft fleece, it gives us that touch of insulation we crave on early-morning approaches, windy ridgelines, or transition stops on the skin track. At just 25 grams, it's easy to forget we're even wearing it-until a cold gust rolls through and we're grateful it's there. Slim, simple, and endlessly packable, this beanie layers seamlessly under helmets or hoods without bunching. It's the kind of essential we always keep in a pocket, ready to add quick comfort whenever temperatures dip, no matter the season.