ZED RUN is a horse racing game on the blockchain that maintains a digital HQ in Decentraland. Visit their HQ and claim your free RED RUN t-shirt wearable. Check out their website or their Getting started guide to learn all about ZED RUN.
The wearable wardrobe is where you can buy Decentraland wearables in-game. One location is at the end of Rainbow Road from the Pride 2021 event near Vegas Plaza. You can see how the wardrobe works right at the beginning of this video: