Felt lightweight and comfy when I first put them on, but these ended up giving me the worst heel blisters that I've ever had in my life. Didn't realize how badly they were rubbing when I was out walking until I was like 2.5 miles away from home, then I had no choice but to wear them all the way back. The resultant blisters were giant gaping wounds that made it so I couldn't wear anything but flip flops for the next month. My bad for wearing new shoes on a long walk without breaking them in, but ouch! This was over a year ago, and I've worn them from time to time since then, thinking they'll eventually break in and the heels will soften / stop rubbing. No such luck. (And I wear the hellishly expensive balega anti blister socks too; these shoes still wrecked my feet for a good month.)