This will fit beyond 3 months. Like new - only worn 3 times. This heritage-inspired down vest for babies has a Western-style yoke made with 100% recycled nylon Baggies fabric; the body is made of 100% recycled polyester ripstop and insulated with 700-fill-power 100% Recycled Down (duck and goose down reclaimed from down products). Fair Trade Certified sewn. Features DWR (Durable Water Repellent) Finish: For water resistance, shell and lining have a DWR (durable water repellent) finish Tall Collar and Western-Style Yoke: Tall collar and Western-style yoke made from 100% recycled nylon Baggies fabric Snapped Placket: Full-length snapped placket Horizontal Baffles: Horizontal baffles keep 700-fill-power 100% Recycled Down (duck and goose down reclaimed from down products) insulation in place for core warmth Side-Entry Handwarmer Pockets: Side-entry handwarmer pockets have soft, cozy brushed tricot on the palm side Smooth Lining and Straight Hem: Smooth lining for easy on/off; straight hem Fair Trade Certified: Fair Trade Certified sewn; hand-me-down ID label inside garment