These Patagonia Baby Capilene Midweight bottoms feature moisture-wicking capabilities, superior Capilene fabric, and Bluesign approved sustainability, making them the ideal base layer choice for active outdoor adventurers and parents seeking reliable and eco-friendly baby clothing. Features Recycled polyester fabric Pull on styling Elasticised waist band Gusseted crotch Low-bulk construction and flatlock seams Hand-me-down ID label Material 100% recycled polyester diamond-grid double knit with HeiQ® Pure odor control Fabric is certified as bluesign® approved Fair Trade Certified™ Sewn Patagonia Baby Capilene Midweight Thermal Bottoms