models in the range: the £50 model is now called the Jazz 6000; the £60 option has the addition of Saucony’s latticed GRID in the rearfoot for more resilient cushioning, and for the last few years has been firmer and more durable.The all-new GRID Jazz GTO

Grid Jazz GTO, thanks to a small thermoplastic insert in the midfoot, but this is still really a shoe for neutral runners.If you liked the softness of the previous Jazz, then you’ll find much to admire in the Jazz 8. The ride is soft without being too

.Try it if you liked Saucony GRID Jazz GTO (£60); Adidas Response (£60); Brooks Vapor (£60)

for most runners considering a sub-38 10K leg.If you’re familiar with the previous Azura, you’ll notice the addition of forefoot GTO cushioning material to complement the existing rearfoot GRID; plus a vented midsole to let air in (or water out) from

. It’s also good value, with a forefoot GTO cushioning pad as well as Saucony’s normal rearfoot GRID unit. If you havebiomechanical problems, you should look to a motion control shoe such as Saucony’s £75 GRID Hammer or £60 GRID Sovereign

.Try it if you liked Saucony GRID Wired (£60, discontinued); Saucony GRID Jazz GTO/HRC (£60); Nike Air Span Triax (£60)

Jazz GTO or HRC (£60); Asics Gel Cumulus (£64.99); Adidas Boston (£60)

Jazz GTO |GRID Shadow |Jazz 6000STABILITY3D GRID Hurricane | GRID Omni |GRID WebMOTION CONTROLGRID Sovereign |GRID StabilPERFORMANCE TRAININGGRID AzuraOFF-ROADGRID Aura TR3 |GRID Harrier

runner who prefers a firm ride, it could be worth trying on a pair.Try it on if you liked Saucony GRID Jazz GTO (£59.99); Adidas Boston (£59.99)

stability.In short One shoe, three varieties. The new Trigon should become an instant classic alongside the stability-oriented GRID Omni – even if it will be the middle version of the shoe that sells best.Try it on if you liked Saucony GRID Jazz GTO or HRC