This adorable outfit is a must have for your little cutie, it's super soft and so comfortable! The fabric we used is super stretchy and breathable, wait until you feel how soft it is! Made from a polyester/spandex blend, this fabric is a little thicker so the body of the peplum has some volume. It lays so nicely! These run true to size and a little roomy, we recommend snagging the size you normally wear in our two piece! We do not recommend sizing up with this set.