The Converse size guide is completely wrong.
In the photo I show the label of these ones (beige) and next to it the label of another pair of Converse platform shoes I also have (khaki).
For a 24.5 cm foot length, one labels it as 38 and the other as 39. Nonsense.
For a 24.5 cm foot length, get the 38, that is the correct size. The 39 I ordered according to the size guide is HUGE. So we still have to go down 1 size in Converse sizing compared to other shoe brands, as has always been the case.
If you wear a size 39 shoe, get a 38 in Converse.

Very honest review. I have never worn a more comfortable shoe. After a very bad break last summer (I pretty much shattered my metatarsal), unfortunately, I can't easily find shoes that suit me. This particular one feels like you are stepping on a little cloud and it doesn't tire you at all, even after a whole day. The "ortholite" insoles are truly ORTHOLITE! Be careful with the sizing, they have a wide fit, so get one size smaller than what you usually wear. I've added it to my favorites and whenever I get notified of a - truly - good offer in a color I like and that matches my outfits, I buy it (I found them on Skroutz for €40). I already have 3 and if I spot a gold one, I got it yesterday!