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What makes an Asics shoe

There's a reason why so many Olympians wear Asics running shoes. They're comfortable, stylish and packed full of the latest technology. But how does this all work together to deliver the perfect running experience?

We take a look at the key components of Asics running shoes, starting at the top.

Asics shoe


Obvious but essential - uppers are the top parts of your shoes with the job of holding your feet in place while you run. Asics use soft, breathable materials in the uppers of their running shoes to keep your feet cool and comfortable at all times.

Heel Counter & Collar

The heel counter is the plastic which wraps around the heel of your foot, holding your heel in place. The heel collar support your heel and Achilles tendon at the top of the shoe, stopping your feet from slipping down inside.

Eyelet & Tongue

For convenience and comfort - tongues make your running shoes easier to put on and protect your feet from the laces rubbing against them. The laces are threaded through eyelets to make tying them as smooth as possible.


Sock liner

Also called the insole, the sock liner is the layer your foot sits on. Asics use foam sock liners to provide additional cushioning, support and stability. Medical insoles (orthotics) are commonly used to treat symptoms of over or underpronation.


A mixture of cushioning and durability, lasting is stitched to the upper of your shoes with the sock liner placed on top of it. ASICS use Solyte and SpEVA as lasting materials.

GEL Cushioning

Found in the heel and forefoot of some Asics running shoes, GEL cushioning acts to absorb the shocks experienced by your body when out running. GEL technology is perfect for trail running where extra support and cushioning is often needed.



The midsole is the layer of material found between the outsole and the upper of your shoe. The midsole's job is to cushion the impact on your feet and provide bounce on each step.

Space Trusstic

Did you wonder why we referred to space in the title? Asics trainers feature a plastic bridge under the arch of the shoe called the Space Trusstic. This provides additional strength, stability and flexibility.


The base of your running shoe and the part in contact with the ground when you run. Asics outsoles are made using AHAR+ (Asics High Abrasion Resistant rubber) to grip every wet or dry surface you encounter.

Want to know more?

Read our Complete Guide to Asics Running Shoes.

New Balance
Under Armour
Buy now, return after Christmas
Buy now, return after Christmas