Did the liner in size M, which will fit according to the manufacturer up to size 37 yes, ordered for our 8 year old daughter. She currently wears shoe size 34, but we had already set the liner on the penultimate stage. As us then but was too risky for the relatively high price, after all, they should at least 2 years fit for the price, we sent them back and ordered in size L (35-40). While this sit a bit clunky on foot as they are broad, but our daughter will use them much longer. She is super happy with it, nothing pushes, strings goes jerk twitch and you will be taken every day.