Material: polyamide,elasthanne </br>Set include: 3 pcs Tankini sets (1pcs Strap crop top + 1pcs underwear + 1pcs long sleeve sun protective coat with zip )</br>KEEP YOUR CHILD PROTECTED FROM HARMFUL UV RAYS! lovely style,good quality and comfortable wear,best gift</br> Size:the suggested age is just for your reference, please check the measurement to make sure it fit for your baby . The size is measured by hands, please allow minor error of measurement