noun
compressed T-shirt
A T-shirt that has been mechanically compressed into a small, flat package for retail display or vending machine sale; the shirt expands to normal size when opened.
お土産に圧縮Tシャツを買った。
I bought a compressed T-shirt as a souvenir.
圧縮Tシャツは開けると普通のTシャツになる。
When you open a compressed T-shirt, it becomes a normal T-shirt.