Double happiness

This design is  a Chinese character 囍 . 
It is actually made up of two characters. 喜(xi - which means happy) and 喜 (xi). Hence 囍 (also pronounced as xi) are sometimes translated as double happiness or 双喜 (shuang Xi).
It is a character often used as a symbol of marriage. Which explains the hearts I embedded into the character. The two interlocked hearts symbolize tying the knot or the rings if you like. :)

Double happiness. Chinese character 囍 (xi). Tee Shirt by AMayeZeen
at Zazzle.