The best days to cut fresh tracks- bluebird, cold, and still. The actual days you'll head out to cut fresh tracks- all and any. For those with an insatiable appetite for snow, the Igneo Jacket bridges the gap between crystal conditions and furious snowstorms. Thermore insulation holds off bitter temperatures that keep clouds at bay, while Pertex Shield fabric seals out raging blizzards. And when you're on your third lap of the back bowl, the double-sliding pit zips are there to keep you from overheating.