Outsole feature that helps stabilize and guides the foot through the walking gait cycle.
Overall Product Rating
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8/12/15 by Ron1202 | Los Angeles, CA
"The 577 is supposed to be a walker but has two fatal flaws. First, you would expect even a minimum of arch support from this kind of shoe, but this doesn't have any. Zip. Totally flat and totally uncomfortable. NB I guess expects you to pay an extra 50 bucks+ for one of their separate arch support innersoles, which is ridiculous. Secondly: A walker? An all-day shoe? Ridiculous. After five minutes your feet are swimming in sweat since the designers failed to factor in any air circulation for this hot-box torture chamber. So, total fail on NB's less expensive, and worthless as is, walker. I used to have a decent NB walker a few years ago, but if this is any indication of how far NB design has fallen, I won't be buying any more shoes from them. If you're a would-be buyer, pass on this and save your money."
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