Fabric: 100% recycled polyester that's windproof, water-repellent, and machine washable. Feel: Silky smooth with lightweight warmth. Fit: Layer-friendly, hits at hips. Elastic at hood & cuffs helps retain warmth. Sizing Update: In an effort to provide your growing child with a better fit between size 3 and size 5, we’ve introduced size 4 to our assortment. Our previous size 4/5 is now known as size 5.