I'm an adult. I wear a typical 6.5/7 in sneakers. These are a rad big but I like that because  I wire then for 8 miles today on my first trail hike in them and my feet swell. They are seriously the beat shoe I've  ever bought. That's saying something because I own Brooka/Ryka/Mizuno/Sacouny all right now and these are mind blowing. 8 miles for a firat and not a single blister!  I've  never been more impressed as I always end up with a tore up ankle or blisters or sore toes. I wish I had these in a better color as eggplant/peach isn't my first  choice but the shoes is worth the color combo!