We took the 650-fill duck down and durable nylon shell found in our rugged Ruffer Puffer Outerwear and made work-ready mittens to match. Same windproof, water-repelling properties, plus hardy rib-knit cuffs to seal out the cold and handy side clips to keep ’em paired when not in use. When the mercury drops, Ol’ Man Winter may be in his glory, but the devil’s in the details – and that’s where cold-clapping, wind-snapping Ruffer Puffer Mittens shine.