Gently used. US women’s size 9W, Euro size 40 = 25.96 cm. Superga has got you covered on fashion-forward, everyday footwear. This classic kick packs fashionable appeal in a chunky, rubber platform heel! 100% Biodegradable Vulcanised Gum Sole. 1.5" platform Superga recommends measuring your foot or choosing a 1/2 size down from your typical US size to find your Superga fit.