The down versus synthetic debate is over. Our Micro Puff® Jacket delivers the best of both worlds with a revolutionary, feather-soft synthetic insulation that has an unprecedented warmth-to-weight ratio. The groundbreaking PlumaFill insulation (65-g 100% polyester) is phenomenally light and compressible, offering down-level warmth that still traps your heat when it's wet. A nylon ripstop Pertex Quantum® shell, with a DWR (durable water repellent) finish, blocks wind and snow. The garment's design maximizes performance and minimizes useless fluff.