Mine did the same. I have the dri-fit shirt and shorts and they look the same as the day I bought them. I had to screen printed shirts and the print on the front has cracked or fell off and it looks all faded but the Nike logo on the sleeve is fine. I am going to exchange them but it's like how the he'll do you wash these things with out them falling apart.
Turn them inside out while washing...and dont use a dryer to dry them...or dry on low heat..but I would just let them hang dry..