The season for Glückund Gute's winter classic ``foot sleepwear'' has arrived again this year. The outside is made of 100% wool thread. The inner organic cotton yarn is knitted again this year with yarn dyed using food waste, in an effort to realize a sustainable society. On the product page, we will tell you what ingredients are used to dye the product, so we hope you enjoy it as well. In the season when you are worried about your feet getting cold, we hope that your nightwear will be of some help. Please see the product page for details.