The Columbia Amaze Puff Mid Hooded Jacket pairs 650 fill power down with an Omni-Shield finish that keeps moisture and stains from soaking into the fabric. RDS-certified down traps heat through frigid, snowy conditions, while the water-repellent shell keeps that insulation working once the weather turns wet. We built in room to layer a sweater or sweatshirt underneath, so the jacket adjusts to however cold the day actually gets. What Our Gearhead(R) Experts Are Saying:"I wore this through a slushy commute where my old puffer would have turned into a wet sponge, and the Omni-Shield finish beaded up before any of it soaked through to the down. Two hours outside and the insulation stayed lofted and warm instead of clumping under my jacket."