Psyduck themed Boxers, his Grandma gave it to him during Christmas and Tyler wore them because free underwear. He got teased to hell and back for them during school, so he tried to stop wearing them

But when his Mom blabbed that Tyler wears the boxers, his Grandma would buy him a pair every Christmas, or maybe some matching socks or PJs. And Tyler can't say anything about it because she looks so satisfied and happy-

So 9/10 times if you catch Tyler changing, expect Psyduck boxers-