For the grom that is constantly pushing the limit, there's the Volcom Ace Jacket. Constructed with 8k waterproofing, 3k breathability and 120 grams of polyester insulation, he can board all day without complaining that he's too wet, too stuffy, or too cold. Underarm zip vents allow cool air to circulate in and excess body heat to escape if it's a warmer day, and Grow-Tech allows for sleeve expansion of up to 1.5 inches. You may not be able to keep up with your grom on the hill, but the Volcom Ace Jacket easily can.