They are neither socks nor slippers.
They are completely new type of footwear.
Reversible, Washable, Fold compactly, Made in Japan.
material:
- outer material: 31% polyester, 25% cotton, 22% acrylic, 15% rayon, 7% others
- lining fabric: 50% cotton, 50% polyester
- padding: 100% polyester
- ribbing fabric: 98% cotton, 2% polyurethane