Kim Kardashian promotes Reebok’s Easy Tone Shoes

At the Reebok EasyTone Footwear Celebration in Beverly Hills, Kim showed up in a white button down shirt, rolled up jeans and, of course, some Reebok EasyTone shoes.

In her blog, she talked about the shoes saying: “Kourtney,Khloe, my mom and I went to a very cool Reebok party the other day. It was the launch party for Reebok’s Easy Toneshoe’s. You guys wouldn’t believe it, these shoes have a ball (kind of like that big balance ball you use to do sit ups on) on the bottom of the shoes! So basically it works your leg and butt muscles as you simply walk! It feels kind of odd at first but you totally get used to it! And it’s only a small ball or almost half of it so you get used to it pretty quickly. We wore them all night”