I purchased this at Apita. My daughter wore this for her elementary school graduation ceremony and piano recital. The back of the waist has elastic. It has built-in shorts, so you can wear it with just this one piece! There's also a pocket on the left side. There are no belt loops, but there's a loop to attach a charm. I washed it at home, and the pleats seem to hold up well, looking this neat without ironing *ˊᵕˋ* It can be used for everyday wear or formal occasions (*^^*) Length... Approximately 40cm Waist... Laid flat, the waist width is 28cm, so it's about 56cm when the elastic isn't stretched. If anyone is interested (*´˘`*) Gray Blue