From the author's README on Thunderstore

Just a few shirts I own IRL, Ill def be updating this as there are so many I like but some I can't really get looking good.

I scanned, shot, and edited all of these by hand. No AI was used at all EVER!!!!

Shirts included:

Yahoo Hack Day Summer 2007
Strange Daze Doberman
Riot Society Embroidered Rose
Brandon Art

The yahoo one looks bad rn since I haven't cut it out yet so there will be a huge ugly reflection, just uhhhh don't look at it too long

Install Catts Misc Clothes

You need ReSkate and your own copy of skate. on Steam.

Open ReSkateLauncher.exe and go to MODS.
Search for Catts Misc Clothes and click install. The launcher also installs anything it depends on.
Press PLAY. In game, the MODS tab of the ReSkate menu (Insert) turns it on and off.

Or install it by hand: download the .zip and drop it on the launcher window, or unzip it into its own folder in Mods\ beside Skate.exe.

Maps show up in the ReSkate menu's level list. To join a server running a custom map, you need the same map installed. If the game won't load after installing, see known issues.

skatemods doesn't host or review this mod. The download comes straight from Thunderstore. Only install mods you trust, because scripts can run code.