Ordered a Medium for a 6 year old who is tall for her peer group and measures similar to 7 year olds. Good in waist. Appeared to be fitted going on, but she likes compression. Extremely long (gather at the ankle.) Then the unthinkable happened - they were put into the drier by a meaningful laundry helper. Voila! Instantly no more cooling effect where the little carrot spors were located. Now just a not-so-great fitting legging.

But...she is now 7.5 and still fits the Medium, so we are going to try another order, because the cooling feature in TX summers is nice when it is properly washed and line-dried.

So...warning: avoid the dryer! And buy a size up!