Soft against the skin this merino wool thermal baby all in one is the perfect way to keep warm and cosy this winter wool is a natural way to regulate body temperature as it breathes wicking moisture away from the skin keeping baby happy warm and dry perfect as a first layer in colder weather loops in the fabric allow air to circulate 100 merino wool makes the garment strong and durable seams sewn flat for extra comfort practical full length zip makes dressing easy