Spring and autumn weather can swing from mild to cold within a day, and the Isbjorn of Sweden Air Light Weight Jacket changes roles with it, serving as an outer layer or as a midlayer under a shell. Lightweight PrimaLoft Black insulation made from recycled material adds warmth that stays light and allows full freedom of movement during play. A water-repellent finish sheds light moisture. What Our Gearhead(R) Experts Are Saying:"My kid zipped the jacket all the way up on days the weather swung, and the soft chin guard kept the zipper from chafing their chin and cheeks. When it warmed up, the jacket packed away easily in the bag."