Made with a beautifully soft bamboo elastane, suitable for delicate baby's skin. Our basics are well designed for comfort and everyday wear. Sizing guide: true to size. 0-3m, 3-6m, 6-12m, 12-18m,18-24m Fabric composition: 95% bamboo, 5% elastane. Care instruction: MACHINE COLD WASH. DELICATE CYCLE. DO NOT DRY CLEAN. DO NOT BLEACH. TUMBLE DRY LOW.