What Our Gearhead(R) Experts Are Saying:"Sub zero wind chill on a lift line usually has me shivering by chair three. Not this time. The Copper Jacket's Sorona insulation had me questioning whether I even needed a base layer underneath, and the underarm zips let me dump heat the second I started working too hard on a bootpack."Some jackets play it safe. The Copper doesn't. Bold colorways and a symmetric design make it stand out on the lift, but underneath the style is where this thing really earns its keep: 100g of Sorona Black ECO insulation and a 20K waterproof stretch shell built for the kind of cold that makes people turn around and go home early. Pop the hood up when the wind picks up, or leave it clipped off when the sun's out. Either way, the Bronze Chassis interior is quietly doing its job, mesh shoulder padding, a chamois lens wipe tucked into the goggle pocket, a data card slot that actually keeps your pass where you can find it. Small stuff, but it adds up to a jacket that feels engineered rather than assembled.