The official Japanese Pokémon website has revealed 6 new Pokémon UNIQLO T-Shirts that will be going on sale on March 14th. The t-shirts feature
Tsutarja,
Pokabu,
Mijimaru,
Zorua,
Chillarmy, and the Zukan. The t-shirts also come with exclusive original Pokémon Trading Cards. The shirts will sell for 990yen each including tax.
Sources:
http://store.uniqlo.com/jp/store/feature/ut/pokemoncard/ and
http://www.pokemon-card.com/campaign/uniqlo/