What Our Gearhead(R) Experts Are Saying:"This vest is my go-to layer for my little one during transitional seasons. It adds just enough warmth without restricting movement, and the windproof lining really makes a difference when we're out on chilly walks."For our tiniest outdoor explorers, the Patagonia Retro-X Vest brings core warmth in a soft, durable package. Whether they're bundled in a carrier on a family hike or toddling through the leaves, this cozy vest keeps them protected from cool breezes without adding unnecessary bulk. Made from 100% recycled polyester pile fleece and lined with a windproof barrier, it's a smart outer layer or midlayer for mild winter days or crisp fall outings. Details like spandex-bound armholes and a soft moisture-wicking lining ensure comfort for sensitive skin, while the retro-inspired look brings timeless Patagonia style in miniature form. Add in the durable zip closure and handwarmer pockets, and this little vest packs a punch of warmth for big days out-even when the weather's less than perfect.