Engel production is made in Germany and certified with ‘IVN BEST’ and ‘Global Organic Textile’, that verify high quality of products. This T-shirt with long sleeves made from 100% merino wool.Merino wool is the softest wool – ideal for baby’s skin. It is natural body temperature regulator, especially when worn against the skin. Merino wool excellent absorb and repel moisture. Wool is also breathable. Such T-shirt will be absolutely great as underwear or just as cute T-shirt. It will be more comfortable for using with reusable diapers as bodysuit.Size 3-6 months: Length of T-shirt 28 cm (11 inches), Length of sleeve 23 cm (9 inches).Size 6-12 months: Length of T-shirt 31 cm (12 inches), Length of sleeve 27 cm (10,5 inches).Size 12-24 months: Length of T-shirt 36 cm (14 inches), Length of sleeve 30 cm (11,5 inches).Size 24-36 months: Length of T-shirt 38 cm (15 inches), Length of sleeve 33 cm (13 inches).