I bought the pink & grey pair for my 16mth old daughter in size 18mths they fit perfect but then when I washed them they became too short,I was always pulling them down.My daughter is tall in the 95th percentile 32.5inches.I liked them so much I bought 2 more pairs of the black&grey pants in 24months to go with the red and white 4pack bodysuits,and now they fit perfectly even after being washed!They match great with the bodysuits I purchased.A Very comfy fit and everyone loves the ruffles.*If u have a taller baby deffintley size up!*A must have goes w alot of other carters clothing..wish they made more colors!