How to get the preview image of a clothing item

[robloxianmirror (mirror)]

https://www.roblox.com/asset-thumbnail/image?assetId=SHIRTIDHERE&width=420&height=420&format=png

Clothing picture Getter?

You can use the asset thumbnail endpoint to display a shirt thumbnail. With that, you can set it up where, when an assetId is entered into a textbox, the image is changed to the asset endpoint with the assetId being whatever they entered. Hope this helps!