post; an external heel counter, which cups the heel; and a tough support overlay on the upper that is integrated into the lacing system. The Durham also has a polyurethane midsole to suit heavier runners, which is bolstered with rear- and forefoot Air

Faze. This version of the Presto has exchanged the conventional laces on its stretch sock upper for stabilising straps, borrowed from the Kukini.The other big change is in the rearfoot, which, like so many shoes, now has a large centre

cushioning. The difference is in the slip-on upper. It’s not as stable as a laced upper, but it’s a step up from other slip-on training shoes because a cross-over cover helps to keep your foot secure.If you’re going to run for more than 20 minutes at a time

upwards to cup the heel for added support. The shoe then rides smoothly through to a flexible, supportive forefoot for toe-off, and the ride feels lighter than the shoe’s weight would suggest.We also liked the upper, which can be laced either

toe-off has been narrowed, too (though the upper’s shape hasn’t changed). Even the speed lace loops have been removed. And small details reduce confidence – such as the fact that the bevelled heel is angled differently from the crash pad around it

of Saucony’s GTO cushioning material, and the fully-looped lacing system and tapered shape made for a slightly pinched forefoot fit on some testers. But on the positive side, the Jazz GTO was smooth, light and flexible and the lugged grip was good both

the upper, which has been given a newer look, a more substantial feel, and a faster, better lacing system. You’ll also find that it has a slightly broader fit through the forefoot.In short The Jazz 6000 is just the Jazz 5000 in new clothes. It

, and the laces pull the side straps of the logo snug, to give more support than the MC+ did. From a wearability angle, the midsole is rounded to the shape of the foot rather than being flat, and the heelstrike is smoother and more natural.We didn’t have big

under the laces, and the fact that the upper lets water out easily. The upper is nicely sculpted, especially around the midfoot, though two of our women weartesters noted that the shoe slipped on their (narrower) heels up hills. More significantly, more

certainly never run a race like this one. It traverses one of the most beautiful bays at low tide, over sand of varying texture, with occasional waves lapping over your laces. The 13 or 14K as the seagull flies will seem more like a half-marathon effort