Size Medium 95% Organic Cotton, 5% Spandex Functional top to help support your baby during skin-to-skin Also perfect for nursing while sitting or reclining GOTS-approved fabric Super-soft cotton for sensitive skin Note: This is a skin-to-skin garment only, not a baby carrier. It is not intended for babywearing. Use while seated or reclined. If you move or stand while wearing this shirt, always support your baby with both hands. This garment is for use with a full-term infant up to 15 lbs.