Adult Opposuits South Park Stan Onesie Costume
- Onesie
Small Moments,
Monster Memories
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| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Small | Chest | 36 1/4" | 92cm |
| Small | Waist | 30" | 76cm |
| Small | Hips | 39 1/4" | 100cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Medium | Chest | 37 3/4" | 96cm |
| Medium | Waist | 31 1/2" | 80cm |
| Medium | Hips | 41" | 104cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Large | Chest | 41" | 104cm |
| Large | Waist | 35 1/2" | 90cm |
| Large | Hips | 42 1/4" | 107cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| X-Large | Chest | 42 1/2" | 108cm |
| X-Large | Waist | 37" | 94cm |
| X-Large | Hips | 43 1/4" | 110cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| 2X-Large | Chest | 44" | 112cm |
| 2X-Large | Waist | 38 1/2" | 98cm |
| 2X-Large | Hips | 44" | 112cm |
- 100% polyester
- Fleece jumpsuit has zipper down center front, rib knit wrist and ankle cuffs
- Attached hood, side pockets, kangaroo pocket
- Embroidered Stan patch on the sleeve
- Officially licensed
Stan Marsh, But Make It Cozy
The Adult Opposuits South Park Stan Onesie Costume is a fleece jumpsuit for adults that brings the iconic South Park fourth-grader to life in full lounge-ready form, complete with attached hood, pockets, and an embroidered Stan patch on the sleeve.
Stan Marsh has been standing at that bus stop in the Colorado cold for over two decades. At some point, someone had to do something about that. This is that something. It is warm, it is fully zipped, and it has pockets. Stan himself would probably appreciate the upgrade.
Product Details
This officially licensed jumpsuit is made from 100% polyester fleece and zips straight down the center front. The attached hood keeps things looking intentional rather than improvised, and the rib knit cuffs at the wrist and ankle lock in the silhouette without any extra effort on your part.
Three pockets are built into this thing: side pockets for your hands, and a kangaroo pocket in front for whatever else you need to carry around South Park. The embroidered Stan patch on the sleeve is the detail that pulls the whole look together and confirms that yes, this is a costume, not just an extremely committed loungewear choice.
Respect His Authoritah (And His Fit)
Wear this to a watch party, an ugly sweater night that got interesting, or just a regular evening where you decided the couch deserved a little more effort. The Adult Opposuits South Park Stan Onesie Costume is the rare outfit that works equally hard whether you are trick-or-treating or just trying to find the remote.

We believe that costumes have the power to create some of life's best moments. That's why we started Made by Us. This diverse selection of costumes and accessories are all artfully designed and expertly crafted by our talented team of artists, designers, and developers.

Each project begins with a passion for true quality–embroidered patches, faux fur cut with care, and hand-selected fabrics that are as durable as they are comfortable. Those are just a few examples of how much craft and creativity we put into each and every product. Just for you.

No matter how much time it takes, our goal has always remained the same–to create products that inspire your life's best moments–the big, the small, the funny, the spooky, and the sweet. The moments we all cherish. That's Made by Us.

