Stellar OnesieIt's nearly the most flexible, buttery soft material you will ever wear. It's food baby approved, pregnancy approved, sweat proof, stain proof, and not see through. Our Onesie is a must to help you transition seasons. It's as simple as pulling it over your feet, and in seconds, you will feel confident, comfortable, and chic. Stellar Onesie runs true to size. To ensure proper fit, please check our size chart.