Changes

* {{H:flexibility}}. The PureConnect is nicely flexible due to the midsole groves and the gaps in the outsole.

* {{H:outsole}}. The hard rubber outsole covers most of the underside of the shoe. This outsole improves longevity and grip, but adds to the weight. As you can see from the pictures, the outsole is in patches which help keep the shoe flexible. The outsole rubber used here is a nice combination of hard wearing and grippy, and is fairly thick. This outsole increases the weight of the shoe, and the longevity it brings probably won't help much given the way the foam midsole breaks down.

* {{H:upper}}. The upper is inflexible and there are seams that could rub and create issues for some runners. The ankle opening is well padded, but the rest is thin and breathes reasonably well. The PureConnect has Brooks' "Nav Band" which is an elasticated band over the middle of the shoe, going from where the upper meets the arch of the foot, over the top and down to the outside edge of the midsole. This elasticated band is intended to keep the shoe secure, but it just puts extra pressure on the top of the foot. I didn't like this band at all, but it's easy to cut it open where it crosses the tongue. Overall the shoe is slightly less comfortable than average.

* {{H:tongue}}. The PureConnect has a tongue that is attached to the inside of the upper, with the outside free, a combination that I like. It keeps the tongue in place without the problems of a sock style upper. The tongue has a slight degree of soft padding which should be enough for most runners.