Uniqlo Kids Black Regular Heattech 140 Black Extra Warm Heattech 140 Purchased last year, but since I had a lot, these two items have only been worn a few times. They were stored in the closet, so they have some small fibers from other clothes attached, but the Heattech itself has no pilling or stretching around the neckline and can be worn comfortably. Worn by a girl.