Bamboo and Organic Cotton Baby Collection Nest Designs Nest Designs Nature's Creation Baby Onesie Personalized Organic Baby Onesie with Custom Name & Embroide Inspire NICU Miracle Onesie Project Sweet Peas Cute Nature Baby Onesie Save a Bee Plant a Flower Bodysuit Etsy Happy Tree Organic Baby Onesie 3 6M Crate & Kids. The Nature's Creation Baby Onesie This handcrafted airbrushed baby onsie is inspired by the natural shapes and color found in our wonderful home. This onesie features a Flower Mandala, the Flower of Life, and a Honeycomb pattern. This onesie is also UV Reactive!! The size for the onesie pictured above is for those 18 month old cutie patooties. Below are the additional sizes. 0 3 months: Weight 8 12 lbs (3. 6 5. 4 kg) Height 21 24 inches (53. 3 61 cm) 3 6 months: Weight: 12 16 lbs (5. 4 7. 3 kg) Height: 24 26 inches (61 66 cm) 6 9 months: Weight: 16 20 lbs (7. 3 9. 1 kg) Height: 26 28 inches (66 71. 1 cm) 12 months: Weight 20 24 lbs (9. 1 10. 9 kg) Height: 28 30 inches (71. 1 76. 2 cm) 18 months: Weight 24 28 lbs (10. 9 12. 7) Height: 30 32 inches (76. 2 81. 3 cm)