Offering protection against wind and water, the Hammer Block Snow Jacket features 10K waterproofness and 10K breathability in combination with a PFC-free, durable water-repellent coating. Constructed with 80g insulation, of which 90% is Repreve® recycled polyester, to keep you toasty on all-day-long runs, this jacket has a detachable hood, jacket-pants connector system and snow gaiter.