This Patagonia Baby Nano Puff Jacket is made with 100% polyester outer shell material and lined with 100% polyester, this jacket is both durable and comfortable. It runs big and fit my son until about 18 months. It is a solid blue color and has quilted accents, zippered pockets, and a full zipper. Minor signs of wear with light piling at sleeve cuffs. Smoke free and Boston Terrier friendly home.