The challenge will be getting them out of these super comfortable kids base layers! Crafted from our midweight 260gm fabric for ultimate warmth, the Kids Core thermal bottoms are guaranteed to keep them comfortable and warm all day long. This lower body base layer has all the technical benefits present in our adult layers such as our Signature Blend, only shrunk down to suit active little bodies. Ultra breathable and odour supressing, good luck getting the grommets to take them off before bed.