Little ones will look super cute in these sleepsuits with their cool animal designs. Clever copper popper helps line up fastening to make dressing easier. Designed with protective integral mitts for up to 3 to 6 months, and anti-slip properties from 9 to 12 months. With Babysafe toes to keep them comfy and secure. Made with pure cotton. All of the cotton for our clothing is sustainably sourced and always will be.