Perfect fit. Good quality. Arch support a bit stiff. Excellent heel design.
I wear a mens 8.5, and this insole is listed in their size chart indicating compatible with size mens 8 - 8.5.  Well, it fits absolutely perfectly inside my Nike sneakers. At first, when I put my foot on the insole, it was definitely longer than my foot. So, would it be cramped inside the sneaker? The answer: Nope. Once I got the heel in place, i put my hand inside to feel if the toe end was curled, or not lying flat. It was a perfect fit.<br />I walk, bike, jump rope and play some sports (mostly tennis). While i don't have the best arch, i haven't really had problems with foot fatigue or injuries. Doctors haven't suggested orthotics. So, I'm usually wary of arch supports (not wanting to create an issue or a dependence).  This insole does have a somewhat stiff arch support.  I did some biking with this in my sneakers. In the beginning I was aware of the arch support, but eventually I forgot about it. I think the true test will be from a few mile walk or sports.<br />I like the heel design. It seems to envelop the heel, without feeling constricting. The design makes it feel more secure and  custom fitted than the original condition of the sneaker.<br />Not having to trim the insole already created a favorable first impression.  The product seems to be composed of quality materials and construction.  There are many favorable/positive aspects of these insoles. If the arch was not as stiff, i would be totally content. But, the issue with the arch is a personal bias. Who knows, after extended use of these insoles I may want better arch support all the time.<br />Based on these initial impressions, this insole product earns a solid 4.75 star rating, with a high level recommendation.
Rating: 5 stars