Janus 100% Merino Wool Baby Slippers Booties Made in Norway Made from soft, non-itch merino wool, kind to the skin and keep your baby comfortably warm. Janus wool has the capacity to absorb up to 30% of its own weight in moisture, without feeling wet. Merino wool has a high air content and therefore a high capacity for regulating body temperature. Janus baby wool collection is perfect for both summer and winter. Easy to wash in the machine (85 F degrees) and can be tumble dried at a low heat. 2 Sizes: size 6-12 Months (EU 16/19); size 12-18 Months (EU 20/24).