Engel 100% Organic Merino Wool Shirt Long Sleeve 100% Organic Merino Wool. Made from soft, non-itch merino wool, kind to the skin and keep your baby comfortably warm Engel wool is perfect for both summer and winter. This wool is finely crimped, does not itch and feels soft and cozy against baby's sensitive skin. Certified organic by IVN BEST (International Association of Natural Textile Industry) Made in Germany.