They are the "sock it to me" by Chinese Laundry for $69.00. I got them in Cognac for myself. They are so comfortable!
Here are some other styles from CL that I think are super cute and affordable for summer.
The "Scenester"
The "Summertime"
"Suzukii"
"Sock it to me"
Kourtney is wearing a blazer by Joie
top by Josephine
7 For All Man Kind cut off shorts
Chinese Laundry shoes
Tuleste Market fringe bag