Crisp leaves and cool air denote a beautiful time for hiking and playing in the woods. Your little guy is too active to need a jacket with sleeves, so send him out in the Patagonia Better Sweater Vest. It holds heat in his core with cozy knitted fleece, while leaving his arms free for tree-climbing. Forward-set shoulder seams keep him comfortable as he carries a backpack full of supplies for fort-building, and zippered pockets offer extra storage for everything that wouldn't fit in his bag. Patagonia also used a low-impact dyeing process for this vest which uses substantially less water, energy, and materials than conventional methods. Fair Trade Certified sewing and Bluesign approved fabric make this piece a responsible choice, so you can get him started on both a love of the outdoors and a sustainable mindset.