I ordered the gray with light blue insoles and love them.  I typically wear a 7.5 and a 7 fits perfect.  Like some of the other folks commented, these are my favorite flip flops and I find myself always grabbing them over all my others.  I even walk the dogs in them (in the woods).  Really good traction, even when wet.  They are super comfortable, good support and sturdy.  I've been wearing them all summer and they still look brand new.