Nintendo has revealed what it has inshore for the first batch of new cosmetics for the recently released Nintendo Switch Sports. To claim the cosmetics all you need to do is earn in-game points by playing global online matches, then redeem them for in-game items like outfits, rackets, hats, and more. The newly added items are only available for a limited time, but I suspect after a while they will be rotated. The current new items are available for 15 days and you get bonuses if you claim an entire set.