SOFT, BREATHABLE FABRIC: Made of cotton/poly interlock knit fabric that feels soft and smooth on baby's skin. EASY CHANGE DESIGN: The full-zip closure makes changing, dressing, and layering over a bodysuit easy. FUSS-FREE WEAR: The crewneck is tagless for an easy, fuss-free feel. A SECURE FIT: The snap guard helps to keep the zipper pull in place, and the encased elastic heels help secure the fit.