Woolino Footie Pajamas, Merino Wool, Blue | Size 6-9 months Our babe wore these a lot, but we always washed them by hand using wool detergent bought through Woolino and then line dried. They are still in perfect condition. They are now sold out online: https://www.woolino.com/products/footie-pajama-sleeper-merino-wool-blue?variant=9618364334140