Nutricious

"Mothers Milk - Lactose Baby Onesie
Short-Sleeved, 100% Organic Cotton
Printed on sweatshop-free American Apparel Brand
Printed with environmentally friendly inks

Colours Available: Natural

Sizes: 3-6 months, 6-12 months, 12-18 months"

Found at QuasiScienceApparel's Etsy shop.