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Willie Onesie, Blue

  • Made with extra soft Pima Cotton Double Knit
  • Elastic piping at pocket, sleeve and neck
  • Pair with our Bowies and Reversible Bottoms
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Color: Blue
Size Guide
Size Guide - Baby
oso and me size guide baby
Size Guide
Size Guide - Baby
oso and me size guide baby

After making the perfect t-shirt, The Willie T-Shirt, we knew could take it one step further by creating the most perfect unisex onesie, and here it is! We spent forever and a day finding the best fabric, making sure that it wouldn’t stretch out with wear, making sure that it was extra soft, and making sure that it was easy to get on and off with our snaps at the back of the neck and diaper (in our signature colors). We made all of our dreams come true and are so happy to finally give you the world’s most perfect T-shirt Onesie.


We keep our core items available year round as they are the foundation of our brand and your child's wardrobe.

  • 100% Pima Cotton
  • Pre shrunk
  • Machine wash and dry