Purchased on Amazon in June of '25 and worn indoors for about a month in a newly built house. There are no noticeable stains, and the soles don't appear to be worn down. They are very comfortable to wear. The cushioning is firmer than Oofos, not too fluffy. The Mercari category only has options for men and women, so I selected women's, but there's no specific gender designation. Please check Amazon, etc., for details. Reference price: 6,000 - 7,000 yen