Rothy’s The City Slip on Sneaker White

Rothy’s The City Slip on Sneaker brand new never worn! The color is white. They are a size W9. Not a wide, but regular width. I wear a size 9.5 in the Rothy’s Loafer so thought these would be the correct size but the are too big! I have tried them on for about 2 minutes and never went outside in them. They have only been worn to check size in my house. They are spotless!!!! They were final sale so I cannot return.