I call this pattern a ‘Beanie in a Jiffy’, because I literally made it one morning before my little boy Matthew went off to school and completed it in less than and hour and half. I didn’t have time to look for a pattern, so I made it up as I went along. I simply measured it on his head a few times to get the perfect fit and of course used the basic principles of beanie making. Matthew is 3 yrs old, so I would say this should fit a 3-5 yr old and because it is stretchy possibly even up to 6 yrs. For an older child you should probably make the adult version.