Details : Cotton Muslin, Zip Composition : 100% Cotton Becomes softer with each wash, Breathable: prevents overheating Size S : 58 to 71 cm. Size M : 66 to 81 cm. Size L : 76 to 89 cm. Size XL : 89 to 97 cm. Machine washable Age : size S : 0 to 6 months, Size M : 6 to 12 months, Size L : 12 to 18 months, Size XL : 18 months and over