How to change minecraft skin BACK?

If i changed my minecraft skin but wanted to change it back to the normal steve, how would i do that? I didn't change my skin yet because i don't know if i would want to kepp it as steve in the future. If i do change my skin and wanted to change it back, how would i do that?

Click on download the reference skin. This is the default steve skin.

Then simply upload that again to replace your previous one.