I haven't found a thread about this quick change gimmick by Jeki Yoo so I decided to make it. I apologize if it's not in the right forum.

Copy from Vanishing Inc's page:
"J Shirt" by Jeki Yoo is super unique and visual, making it the perfect opener. Like a quick change effect on steroids, "J Shirt" is the definition of packs small and plays huge. There are minimal angle restrictions and you end completely clean.

As everything resets in just one minute, this is a fun and practical routine for any working stage and parlor magic performer.

"JShirt" works just as well live as it does for social media videos and virtual magic shows. This memorable and striking visual is guaranteed to entertain audiences of all ages.

- Super easy to perform
- Great angles
- Resets quickly
- Visual and practical
- Packs small, plays big
- Great for live performances and social media videos
- Perfect opener

What's in the Box?
- 1 x one-size-fits-all shirt gimmick (XS to XL size)
- 1 x cloth
- Online instructions access

IMPORTANT NOTE: You'll need to provide your own shirt and jacket.

"JShirt" FAQ

What Size is the Shirt Gimmick?
The "JShirt" gimmick is designed to be one-size-fits all for anyone who normally wears shirts sized XS to XL.

What Special Preparations are Needed to Perform?
You will need to provide your own contrasting color shirt. You'll also need a jacket and pants. The gimmick will be the color you choose at checkout, so keep that in mind when thinking about what you plan to wear when performing "JShirt".

What is the Best Performing Situation for "JShirt"?
"JShirt" is very practical and can be used in many different situations. But, it's been designed to work best as an opener for your stage magic or parlor show. It also, of course, makes for a great visual magic trick on your social media videos or virtual magic shows.

Does anyone have any experience with using this gimmick while being very active when performing?

I have a quick change moment in my act in which I dance and do a shirt quick change as a prediction. At the moment I am using Callen Morelli's Dresscode for this but I wanted to use something more visual, hence why I bought Jshirt.

I noticed however that this doesn't work at all because of the nature of Jshirt's gimmick. The gimmick gets out of position very soon thus revealing the contrasting shirt.

Did anyone succeed in using this by being very physically active? I have ideas how to edit the gimmick but I wanted to first ask if someone already solved the problem.