Children who love to keep moving will adore this kids' jacket. It's made from our Xylitol Cool material that stretches four ways and is finished in a cooling treatment. Thumbholes in the cuffs keep the sleeves in place while little ones are getting active. This item comes in a fitted shape. The finishing treatment in Reima's Xylitol Cool material creates a cooling sensation against the skin. It also makes the skin surface temperature drop by 1 to 3 degrees! The cooling effect is the result of using xylitol and erythritol, which are edible sweeteners, so it's safe for your kids.