The most striking advance here is durability without weight, where formerly weight was added as a means to withstand the force of the ground below. Not like a trail shoe or something- they're nowhere near that narrow in terms of specificity. But it packs that kind of consistency and performance that convinces the wearer that this shoe is the shoe for the everyday- the long miles or the brisk walks. I concede that the comfort no doubt plays a small part in that opinion because this the sixth variation on the 2000 series and like those that preceded in the series, it doesn't give in or wear out easily. Take the added stitch-down toecap in the upper or the FluidRide midsole for better energy return. Those are those small things that make the shoes comfortable. That's these shoes M.O. Formally, for reliable stability, only they work to ensure that durable versatility is apparent rather than implied. Say they're a training shoe with speed characteristics. Say they're running shoe with daily-use capabilities. Say they're both. Hope they stay that way.
Midsole
IGS (Impact Guidance System) Technology.
Dynamic DuoMax Support System
Rear and Forefoot GEL Cushioning Systems
FluidRide Midsole
Guidance Trusstic System is a lightweight support system that provides additional torsional rigidity.
Guidance Line is a vertical flex groove in the forefoot for improved gait efficiency.
Gender Specific Forefoot cushioning uses an injected top layer of Solyte cushioning for additional comfort.
Upper
Heel Clutching System uses an exoskeletal structure that wraps the heel for a secure fit.
Discrete Eyelets are independently placed to disperse lace tension and enhance comfort.
ComforDry Sockliner is made with anti-bacterial material to reduce odor and moisture and provide additional cushioning.
Outsole
ASICS High Abrasion Rubber (AHAR) in the heel is made of carbon rubber for exceptional durability.
DuraSponge in the forefoot is made from a blown AHAR compound, for responsive cushioning and flexibility.
