he'll love the bulk-free fit of this boy's Heatlite long underwear. This long underwear is knit with hollow fibers that retain body heat without adding weight. Moisture-wicking fabric keeps him dry during his favorite activities to provide a comfortable base layer.
Set: Shirt and pants, Knit construction
Shirt: Crew neck, long sleeves Pants: Elastic waist
Fabric: 41% acrylic, 19% viscose, 35% polyester, 5% spandex