Visitors of Walmart can get a new outfit for Pokémon Sword or Pokémon Shield from November 16th to 25th, 2019 by using the Pokémon Pass app to get a code.

Visit Walmart to Get a New Outfit for Pokémon Sword or Pokémon Shield

Give your Trainer a unique style with this outfit you can only get by visiting Walmart November 16–25, 2019.

We know you're excited to dive into Pokémon Sword and Pokémon Shield, but when you do, maybe consider what you're wearing. Not, like, you you...but your in-game character! After all, who wants to explore the Galar region while wearing some basic threads? It's time to change up your wardrobe! Luckily, possibility awaits you at Walmart, where you can get a code for a unique Trainer outfit in Pokémon Sword or Pokémon Shield.

To claim your new Trainer outfit, download the Pokémon Pass app for Android devices or iPhone and visit a Walmart store from November 16 at 10:00 a.m. local time through November 25, 2019. When you use Pokémon Pass at Walmart, you will be given a code that can be redeemed in Pokémon Sword or Pokémon Shield.

Use these steps, along with your code, to receive your Trainer outfit:

1. Launch your Pokémon Sword or Pokémon Shield game.
2. Select Mystery Gift on the X menu.
3. Select Get a Mystery Gift.
4. Select Get with Code/Password to save your game and connect to the internet.
5. Enter your code or password.
6. To access your item(s), visit the fitting room of any in-game boutique.
7. Be sure to save your game.

Source: https://www.pokemon.com/us/pokemon-news/visit-walmart-to-get-a-new-outfit-for-pokemon-sword-or-pokemon-shield/