This two piece thermal underwear in blue with checkered print wraps kids in cloud-soft warmth that feels like wearing a hug under their winter clothes. The brushed polyester base layer set glides on smoothly with a half-zip top and elastic waist pants that move freely with every snow angel and sled run. Super soft against skin with bold graphic checks racing across the fabric, this cozy foundation keeps the cold out while letting active bodies breathe during all-day winter play.