Material: (majority of colours) 100% cotton. (Black, cobalt blue, white): 100% organic cotton. (Heather grey melange): 85% cotton, 15% viscose. (Heather blue): 60% organic cotton, 40% polyester. Short sleeve bodysuit. In soft and stretchy cotton. With shoulder detailing and poppers for ease of dressing. Height size guide: (0-3 mths): 53-60cm, (3-6 mths): 60-66cm, (6-12 mths): 66-76cm, (12-18 mths): 76-86cm, (18-24 mths): 86-93cm. Ref: UTRW7440