The 'crossover' concept gained popularity over the past decade and involved fashion accessories ranging from hats and shoes to T-shirts and basically anything wearable and usable. These collaborations have provided opportunities for both designers and performing artists, and offered rare collectible items for shoppers. Eason x Jeremy Scott Tee (HK$1,300) This is a special crossover project involving local singer Eason Chan Yik-sun and renowned American designer Jeremy Scott for the Canto-pop star's concert later this month. It's pricey, but no doubt a priceless collectible item for fans of Chan and Scott. Duo Tee White (HK$250) This is another special project for Eason Chan's concert. The character Duo, printed on the tee, was designed by local brand AllRightsReserved for Chan. On the back it says 'How many me?' - wear the outfit and show your support for Chan, if you have been able to buy a ticket to his concert. Chocoolate x Demeter Black (HK$199) A special project by local designer Chocoolate and American brand Demeter. The simple design makes this tee an everlasting piece. With this, you will never be out of date. Chocoolate x Demeter White (HK$199) Black and white are the two prime colours for all seasons. But white is a great tone to wear during the heat - save the black ones for colder days.