NIB Muk Luks Tassel Slipper Socks XL Berry Fair isle design with grey sole

These are just too big for me. It says 8-10 should be an XL, but I'm a 8.5 and these are huge. The sole is about 10.5 inches long. (My feet are about 9"long.) Machine wash cold, dry laying flat shell: 100% Polyester knit tie and poms: 100% acrylic lining: 100% polyester knit sole: 100% Polyester suede