Rated as a 910 on 686's warmth scale, the 686 Boys' Approach Insulated Jacket features 220 gram Polyfill body insulation for balmy bliss in downright frigid conditions. Less insulation 120 and 80 gram, respectively throughout the sleeves and hood provides ample warmth without restricting movement when he's carving down blue squares or throwing backside threes in the progression park. Sealing out unwanted moisture from seeping through, especially on deep powder days and sopping wet spring sessions, the jacket's inifDRY 15 membranelaminate delivers an admirable 15k waterproof and 10k breathability rating. Add in fully taped seams for a jacket that's sure to keep him warm and dry, regardless of the winter conditions he's experiencing. Ensuring your grom doesn't outgrow this jacket within one season, 686's Youth Evolution Multiple Sizing System expands the jacket's cuffs by 1. 5 to 2 inches to accommodate fast growing kids. Other shred savvy features include an adjustable powder skirt, Air Flo underarm vents, Lycra wrist gaiters, sleeve pass pocket, and media pocket for slopeside jamming.