Five-finger socks by the Japanese brand Kurochiku. This type of socks is very common in Japan - it helps improve the natural position of your feet, keeps them dry and protects you from getting blisters between your toes.
It is interesting to see that five-finger socks are increasingly often used in sports such as running, hiking, yoga, Pilates and dancing. You can also use them for walking around at home.
This model is called Yumemineko, for its design showing cats.
Kurochiku - the brand
Kurochiku is a Kyoto-based manufacturer of gift articles.
Their objects reflect ancient aspects of Japanese culture, including traditional patterns and cloths with the typical Kyoto texture and weaving art.