I bought these for powerlifting, specifically for squatting. I had been wearing Puma H Streets before and needed something equally minimal but with a harder sole. I had also been squatting barefoot but wanted a little more heel support. These were perfect. The insole still has a bit of give, and I considered pulling it out but I haven't needed to.<br /><br />I also run on the treadmill for a short distance after lifting. This is not something I am actively trying to improve, but have noticed that these shoes have changed my stride so I'm actually running about 1 mph faster than I was before.<br /><br />As far as sizing, I'm usually between a 7.5 and 8 in women's sneakers. I got the 7.5 and they feel fine. My toes touch the end of the shoe but my foot doesn't feel cramped. I have normal/narrow feet so the width is fine.