Worn a few times during the newborn period! There was almost no spit-up, so I think the condition is good ( .ˬ. ) It's technically an inner layer, but you might be able to get by with just a short undergarment in the summer! The material is 100% cotton, so it's safe✩.*˚ Pastel green and off-white, so it can be used unisex! Great for spares too!!