The merino wool of this wool suit is very smart. It regulates the temperature, and it is even buttery soft. The minimalistic LEGO® Wear onesie is made of a quick-drying and soft merino wool. With snap buttons from the neck down to the left foot. Soft rib at the sleeve and leg opening for a comfortable fit. Small rib at the neck opening and an iconic reflector at the top of the backside.