Skip to content
Size Chart Adult Onesies
Have a good look at the size chart below to determine the right size for you.PLEASE NOTE: OppoSuits have a slim-fit design. When in doubt between two sizes, we recommend you to pick the larger size of the two.

HOW TO MEASURE
Grab a tape measure, write down the measurements and compare with our size chart for the right size.
Hold the tape horizontally to measure:
Hold the tape vertically to measure
Ready to unleash your wild side? The Dino Onesie is the ultimate outfit for anyone who wants to stand out while staying comfortable. With its bold dinosaur design and playful details, this onesie is perfect for costume parties, themed events, or just relaxing at home in legendary comfort.
Featuring an eye-catching dinosaur look and a hood that completes the costume, this Dino Onesie is instantly recognizable and easy to wear. Whether you’re heading to a party, festival, or enjoying a lazy day on the couch, this onesie delivers fun in one complete outfit.
Made from soft, high-quality materials, the Dino Onesie keeps you warm and comfortable all day long. The relaxed fit allows easy movement, while the front zipper makes it simple to put on and take off, perfect for long events, lounging, or late-night adventures.
• Costume parties and themed events
• Festivals and fun gatherings
• Lounging and relaxing at home
• A bold and playful gift
✔ Fun and fierce dinosaur design
✔ Soft, cozy, and comfortable fabric
✔ Relaxed fit for all-day wear
✔ Easy zip closure
Looking for more animal-inspired outfits? Explore our full animal onesies collection and discover even more fun and cozy styles.
You are currently shipping to United States and your order will be billed in USD $.