YX Baby Unisex Solid Wide Brim Sun Protection Boonie Hat UPF 50+ 100% Imported Cotton, Light weight Hand Size: S:40cm-44cm/16in-17in,M:44cm-48cm/17in-19in ,L:49cm-54cm/19in-21in Machine Wash, ECO print, no color running More wider brim, S's brim is 6cm,M/L is 8 cm UPF 50+ fabric. Babies have sensitive skin and sensitive eyes, so special care must be taken to ensure they are properly protected from the sun while playing outdoors