Deckers XLab yellow/red floral boot. Euro 38. Women’s US, will fit 6.5-7.5. I could squeeze these in at 8.5 and they were tight. The slip-on design allows some sizing flexibility but not THAT much for me to wear them. Ha! I’m sad because they are soooo cute and fun! Lovely & cool looking. Warm. Worn once. Includes extra inserts. Non-smoking home.