My two favorite pieces of upland bird gear are my Arrieta 577 double and my Wing Works vest. Beneath the vest I'm wearing a Filson moleskin vest, a Royal Robbins knit longsleeve and lightweight polyester thermals. Headgear this day was a thinsulate camo beanie by Gamehide. Gloves are a lightweight Browning shooting glove. Up top I like clothing that breathes, wicks moisture, and dry's fast. Trudging uphill in chukar country can make you sweat, even in 20-degree weather with a headwind. I can pack a lightweight fleece in the Wing Works vest, put it on at ridgetop, hunt downhill and stay warm.