I have worn Saucony Kinvara for several years. They are my &#34;go to&#34; running shoe. I order a 6.5 ladies, and I'm completely happy with the look, fit, and work ethic of the shoe every time.  This is my first time ordering the newest version, Kinvara 6. Something is different. I'm not sure how I feel about them.  They definitely feel slightly different. The material of the upper shoe is not as flexible. There is something different about the way my foot strikes the ground.  My feet are also hotter. I do live on the Gulf Coast, so in the summer it makes a difference if your shoes make your feet hot! I can't decide if I like these shoes.