Transformers Boy's Converting Optimus Prime Costume
- Jumpsuit
- Truck Cab
- Pair of Wrist Cuffs With Attached Tires
- Pair of Gloves
- Pair of Boot Covers With Attached Tires
- Mask
Small Moments,
Monster Memories
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| Size | Measurement | Standard | Metric |
|---|---|---|---|
| 3T/4T | Chest | 23" | 58cm |
| 3T/4T | Sleeve Length | 16" | 41cm |
| 3T/4T | Torso | 23" | 58cm |
| 3T/4T | Inseam | 17" | 43cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Size 4/6 | Chest | 28" | 71cm |
| Size 4/6 | Sleeve Length | 17" | 43cm |
| Size 4/6 | Torso | 24" | 61cm |
| Size 4/6 | Inseam | 19" | 48cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Size 7/8 | Chest | 30" | 76cm |
| Size 7/8 | Sleeve Length | 19 1/2" | 50cm |
| Size 7/8 | Torso | 25" | 64cm |
| Size 7/8 | Inseam | 21" | 53cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Size 10/12 | Chest | 33" | 84cm |
| Size 10/12 | Sleeve Length | 22 1/2" | 57cm |
| Size 10/12 | Torso | 28" | 71cm |
| Size 10/12 | Inseam | 26" | 66cm |
- Fabric: 100% polyester; mesh: 86% polyester, 14% spandex; foam: 100% polyurethane
- Jersey knit jumpsuit has hook and loop fastener at center back
- All over printed graphics
- Foam wrist cuffs slide on, have elastic band in upper edge
- Wrist length gloves slide on
- Foam boot covers have elastic band in upper edge
- Molded plastic mask has elastic band around back of head, mesh covered eye openings for limited vision
- Foam truck cab has mesh covered windshield for truck mode, head hole in top for robot mode
- Illustrated transformation instructions are printed on item package
- Officially licensed
More Than Meets Recess
Is he a robot? Is he a truck? Is he somehow both at the same time? With this Boy’s Transformers Converting Optimus Prime Costume, your kid becomes the ultimate playground legend. This is no ordinary robot costume—it actually coverts. One minute he's a towering Autobot leader. The next? Full semi-truck mode on the sidewalk, blocking imaginary traffic and collecting imaginary tolls.
It’s the kind of costume that makes every other kid say, “Wait—your costume turns into a truck?!” And just like that, your little hero becomes the most powerful force in the neighborhood (with the aerodynamics of a foam rectangle).
Product Details
This officially licensed Transformers costume comes with a printed jumpsuit covered in detailed Optimus Prime graphics and a hook-and-loop fastener at the back for easy suiting up. Foam wrist cuffs and boot covers feature attached tires, because obviously—trucks need wheels. The gloves and molded plastic mask finish the look, with mesh-covered eye openings that allow for limited robot vision (great for spotting candy buckets).
Then comes the real showstopper: the 3D foam truck cab. When worn, your child stands inside it with their head poking through the roof like a robotic parade float. When it's time to transform, they drop down and—BOOM—full truck mode, complete with mesh “windshield” and undeniable playground street cred.
Transform, Trick-or-Treat, Repeat
This Converting Optimus Prime costume is the ultimate fusion of dress-up and toy magic. No batteries. No apps. Just pure, glorious transformation powered by your child. Autobots? Roll out!


- Needed some tweaksBy R Bonilla | October 20, 2024
Height 53 inches | Weight 79 | Size Size 10/12It was a hit for my 9 year old. Got him size 10. The “boots” I had to attach a strap inside so shoes could stay on. Only if he had Shaq's size feet would this fit. Quite ridiculous. Big hit when he went to school and I’m glad was able to get it. By time Halloween is here we hope he wears it to couple more events.Was this review helpful to you? - Son loves itBy Haley W | October 20, 2024
Height 4 foot | Weight 45 | Size Size 4/6My 4 year old thinks it’s the greatest and has wore it around the house multiple times since we got it in August. I wish the truck cab was a little more sturdy I’ve had it sitting out hoping it would straighten out but where it was folded seems to fold while he’s wearing it. Thinking of taping some cardboard in it which I shouldn’t have to do on a $80 costume.Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - One StarBy Anonymous | October 15, 2021
Size Size 4/6He was very excited to get it. After getting it all on he doesn’t like it. It’s very big and flimsy. The gloves are also missing, We are returning it.Bottom Line No, I would not recommend this to a friend.Was this review helpful to you? - Not super impressedBy Current Customer | October 18, 2023
I ordered 1 Bumblebee Converting costume and 1 Optimus Prime for my 3 year old twin boys. I ordered the Small as they are very tall and going by the recommended size chart. One of the gloves had a hole in it as we were trying it on the first time (not a huge deal). The converting car/truck part must be the exact same size for every single sized costume because it is HUGE and goes head to toe on my kids - in no way relative to the ordered costume size (and again - my boys are super tall - 99th percentile!). So - my boys are super uncomfortable in the bigger converting part while the full body costume fits fine and now they don't want to wear the truck or car part.... so a lot of money wasted.Bottom Line No, I would not recommend this to a friend.Was this review helpful to you? - Good Quality OverallBy Dani | September 29, 2025
For the most part, this is good quality and seems like it will last a while. My son is a tall, lanky 4-year-old, so we bought the 4-6 size to give him room to grow (he loves dressing in costumes, so we try to get them big). Even for getting a bigger size, the cab, arm, and leg pieces seem to run really big, and they are pretty floppy. I'm going to see if there's a way I can add a little more structure to the cab at least. Overall, I would say good quality, but not really worth what it's priced at. I guess it's worth it since it saved me from having to figure out how to make one myself.Was this review helpful to you? - Five StarsBy Paula Bravo | September 15, 2025
My grandson loves his transformer!Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Two StarsBy Yaron | February 18, 2024
My son is nearly six years old, and while the costume itself fits perfectly, there's a discrepancy in the sizing of the truck accessory—it's excessively large and doesn't correlate well with the costume's proportions. Additionally, the truck lacks stability, appearing wrinkled and crooked, which diminishes its overall appeal. Consequently, I wouldn't recommend this costume.Bottom Line No, I would not recommend this to a friend.Was this review helpful to you? - Four StarsBy Mary | October 31, 2023
Size Size 7/8My son is tall but skinny. The part that’s suppose to be the top of the truck does not stay on shoulders. It also collapsed fairly easilyBottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Five StarsBy Anonymous | February 11, 2022
Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Five StarsBy Anonymous | February 8, 2022
Was this review helpful to you? - Five StarsBy Anonymous | January 31, 2022
Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Five StarsBy Anonymous | January 31, 2022
Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Five StarsBy Anonymous | January 7, 2022
Was this review helpful to you? - Five StarsBy Anonymous | December 20, 2021
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