First, thanks to the reviewer who suggested going up half a size in these. I normally wear a 7,but got these in 7.5(or size 38 Euro)and they fit perfectly. I've never worn Asics before,and truthfully I bought them because they were just so darn cute. That confetti sole is a real eye catcher. Once I got them and tried them on though;I thought these have got to be the most comfortable running shoes I've ever worn. The cuteness is just an extra bonus. They are light weight and airy,but supportive. The side design glows in the dark;which I guess can be handy if you run in the dark;but simply being reflective would have been good enough,I think. I'm a little leary of glow in the dark things,but other than that, I'm very pleased with them.