Built for full days on the mountain and every cold walk in between. The Blake pairs waterproof/breathable protection (10K/10K) with 160g insulation through the body and sleeves, so you stay warm without the bulk. Critically seam sealed construction and YKK water resistant zippers hold the weather out, while core ventilation lets you dump heat on the hard laps. Boulder Gear Blake Jacket Youth | X-Small | Christy Sports