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* '''Why you'd buy it'''{{H:WhyBuy}}. The GO Bionic is great value for money, and is lighter than many of the similar shoes such as [[Altra One2| Altra One²]] or [[Saucony Virrata]], though it's also slightly firmer. It's also a 'Better Nike Free'. * '''Cushioning'''{{H:cushioning}}. The Bionic is quite thin and only 10 mm, so it's a little firmer than some other shoes in this category. One concern with cushioning is that the gaps in the midsole can get packed with stones. If that happens, it is quite uncomfortable, as there is only the thin insole between your foot and stone.* '''Drop'''{{H:drop}}. This is a zero-drop shoe, and the midsole is actually fairly flat. There is no taper between the ball of the foot and the very front, nor is there much of rise under the arch. Like most shoes, the midsole cups of the heel for stability, and there is a small taper at the very rear (not enough to be considered a rocker.)* '''Structure'''{{H:structure}}. This shoe uses single density of foam, with cutouts to increase flexibility. * '''Flexibility'''{{H:flexibility}}. The bionic is remarkably flexible, as it has holes in the midsole, as well as grooves. One issue is that stones can get into the holes, causing pain. * '''Outsole'''{{H:outsole}}. There is almost no outsole, with some small patches under the big toe and midfoot area. The bionic is one of the few shoes I've come across that has the additional abrasion resistance under the midfoot rather than the heel. Most of the bottom of the shoe is exposed foam, which reduces weight at the expense of longevity, but the bionic seemed to have much better where resistance than other shoes I've come across.* '''Shape'''{{H:shape}}. The Bionic has the classic running shoe shape that does not match the human foot, but the toe box is not as bad as many shoes. Nonetheless I still found that I had to [[Shoe Modifications| cut the toe box open]].* '''Upper'''{{H:upper}}. The upper is a little thicker than many shoes. The material from the midfoot to the back of the shoe is slightly cushioned and completely inflexible. However, the area from the forefoot forward is nicely flexible and breathable. The padding around the ankle opening is a little less than I would like, but adequate nonetheless.* '''Tongue'''{{H:tongue}}. The Bionic has a classic tongue that is attached half way along its length to either side of the shoe, making it nicely stable. The tongue is made of soft almost neoprene material that works quite well.* '''Lacing'''{{H:lacing}}. The round laces work well and remained tied. * '''Heel counter'''{{H:heelcounter}}. There does not appear to be extra material to form a true heel counter, just upper materials shape giving it structure. The shoe comes as far up the heel as is typical for running shoe.