After reading all of the reviews to make sure i ordered the right size, i got these in two days and they fit perfectly! They are super comfortable. My feet are size 6.5, and i ordered the 37/38. Just remember to look at the Brazilian and not the US sizes because they are wrong. Also it helps to measure your feet, and look at an actual chart to make sure you order the right size. I was worried that the slims would not fit me, but again i measured my feet and the width is a little less than 3, so they are good for slims. To find a shoe sizing chart just search on google. I appreciated how fast these came.