Main Content
Adult Transformers Optimus Prime Converting Costume
Item # DI119389
Items Included
- Jumpsuit
- Truck Cab
- Pair of Wrist Cuffs with Attached Tires
- Pair of Gloves
- Pair of Boot Covers with Attached Tires
- Mask
Recommended Accessories
Sale Price £11.99
Size: XS
Product Information
Size Chart
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| Medium | Chest | 38" - 40" | 97cm - 102cm |
| Medium | Inseam | 30" | 76cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| X-Large | Chest | 42" - 46" | 107cm - 117cm |
| X-Large | Inseam | 31" | 79cm |
Features
- 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
This is a Transformers Optimus Prime Converting Adult Costume.
Questions & Answers
Q: What is the maximum height of a person that will fit this costume? There is no information in the size guide or measurement description for that. Thanks in advance!
(1 Answer)
Asked by Anonymous | 1 August 2026
Monster Responds...
The size chart for this costume lists chest and inseam measurements rather than a height range, so those are the best numbers to guide your fit. The Medium covers a 38 to 40 inch chest with a 30 inch inseam, and the X-Large covers a 42 to 46 inch chest with a 31 inch inseam. Comparing your own chest and inseam to those figures is the surest way to find the right size.
(AI Generated Answer)
Q: Hi guys, can this be used for a 13 year old boy, the M size? Are the adult sizes really large?
(1 Answer)
Asked by Olivia | 26 June 2026
Monster Responds...
This is an adult costume, so whether the Medium works for your 13-year-old really comes down to his measurements. The Medium is sized for a 38 to 40 inch chest and a 30 inch inseam, so if he falls in that range it could work well. Comparing his chest and inseam to our size chart is the surest way to know before you order.
(AI Generated Answer)
Q: I purchased this but have no idea how the truck cab is supposed to be attached. There are two straps in the back but where do they go?
(1 Answer)
Asked by brandon | 22 September 2022
Monster Responds...
They will connect to the inside front of the costume to become shoulder straps.