Samsung Mobile US has announced that a new Galaxy A Series inspired special edition avatar that has a T-Shirt and Cap can be unlocked in Pokémon GO for free using the announced code: KUAXZBJUTP3B7. The code can be unlocked in-game or on the Redeem offers webpage on Niantic's site.

Samsung Mobile US

Trainers, a new Galaxy A Series inspired look is now available!
Redeem this special edition avatar now in Pokémon GO with code: KUAXZBJUTP3B7

Source: https://twitter.com/SamsungMobileUS/status/1414268254340751368