Durability Our Idaho tester wore the Trident while toting a 55-pound pack loaded with climbing gear, and after a season of service, the fabric looks nearly new. Credit the Toughtex shoulder patches (a heavyweight blend of 73 percent nylon, 14 percent polyester, and 13 percent spandex) that resist abrasion from pack straps and ski edges. The rest of the jacket uses Gore Windstopper fabric that proved tough enough for routine wear beneath climbing harnesses.
Insulation The Windstopper’s gridded fleece interior wicks sweat and provides warmth without bulk. “It’s like a shell and midlayer combined,” says our tester, who found it ideal for ski touring and climbing in temps below 25°F. Stretchy, uninsulated panels under the arms facilitate freedom of movement and prevent overheating during moderate exertion.
Breathability Windproof fabric kept our tester from becoming chilled in 30-mph gusts and 10°F temps, but it limits breathability: The Trident is best for moving at a moderate pace (see Shop Smart, page 38). On easygoing tours, opening the pit zips released enough sweat and heat to maintain a comfy core temperature. The trim fit works best over a lightweight baselayer (that pairing also exploits the wicking capabilities of the fleecy lining).
$320; 1 lb. 6 oz. (L); millet.fr/en