This is my third pair of the 7s after having graduating up from the 6s (my first Mizuno-branded Shoe). I primarily race distances / triathlons and needed a support shoe. After trying on comparable ASICS, Brooks and Nike back to back at my local running store, I'd settled on the WI 6's as felt best to me. The 7's feel even more comfortable and lighter but do run 1/2 size smaller than the 6s (e.g. went from a 9 to 9.5). As such recommend going up a half size if you order these.

I'm 42 / 160# and have run 3 marathons 3 half's and numerous training runs 10-20miles with the 7s and have not had issues with my toenails or feet. These fit MY feet well so would definitely recommend considering these to try out yourself.

With the 8s now out, can get 7s at a ridiculously low price to boot.