Got this BlackStrap Big Kids Evolver Crewneck for my tween and it has become the go-to base layer. The stretch moves with him whether he is waiting at the bus stop or out on weekend mountain missions, and the fabric breathes well so he is not sweaty and cold after. Softness held up after several washes. Sizing fits the in-between years nicely, roomy without being baggy. Good pick for active kids who are between growth spurts.