I bought 2 sneakers from CUCCOO brand and they are both of excellent quality. I decided to keep the white one as it is more compatible when paired with an array of clothing styles. My actual foot length is 24.2cm and ball girth 23.5cm (i hv wide feet). I choose size 40 as i like spacious shoes where my wide feet doesnt feel pinched when walking. There's plenty of room for my feet. This size is super comfy. If you dont have wide feet, you dont have to upsize. If you want to tie shoelaces like mine, search YT for 'cool shoelace hacks'.