It seems the main feature is a "relaxed, stress-free fit." My wife bought these this summer, but confessed that she "only wore them once. Even though they're free size, they became too tight," so I'm putting them up for sale. Retail price on the e-commerce site: 5,380 yen (tax included), now selling for 2,695 yen (50% off). * Given the current cold weather, these would be suitable for wearing at home or for quick trips to the convenience store (it might be chilly for going out further). * The 7th photo is a picture from the e-commerce site. I hope it helps you get a better idea of the product.