Down Hybrid jackets are the best of both worlds: warm, waterproof-breathable and durable. 550 fill power goose-certified traceable Allied® Down insures optimum warmth. 15,000mm HydroBlock® waterproof-breathable lamination, 100% polyester 2-way stretch inhibits moisture intrusion. Seamless, bonded down quilting maintains down baffles and loft. The Cosima Down Jacket is a go-anywhere winter coat for diverse activities - from city to slope.