That's one small step for [a] man, one giant leap for mankind. - Neil Armstrong. In your case, don't step on your kids astronaut LEGO or you'll be done for. That's one giant painful step. Period.
Note - rompers have NO SNAPS in the crotch area. Baby slips into the romper through the neck hole, and the stretchy fabric maintains its shape.
100% cotton, 100% YAYTITUDE! Garments run true to size, but if in doubt, always size up!
All seams are neatly serged, and visible seams are sewn with a top stitch.