I have other Ecco shoes and have always ordered shoes in size 47 without problems, but the ecco 47 slippers are too big for us (first pair of slip- ons) - swapped for 46 and they are perfect... you might want to go down a size when ordering slip ons.
Onitsuka Tiger Mexico Shoes - Men's Grey Sneakers
46 Review
π― Experience Maximum Comfort with New Balance MX624V2 Men's Training Shoes
45 Review
DREAM PAIRS Liberty M: Lightweight π and Breathable Footwear for Your Active Lifestyle
59 Review
Orange Men's Vibram Ascent Insulated M Sneaker Shoes - Enhanced SEO
45 Review