Knit upper
One piece of engineered knit, tighter where the foot needs holding and more open where it needs to breathe.
- Material
- Engineered knit
- Typical weight
- Under 50 g
A retail story: a racing shoe with its foam and plate lifted apart, each part in a bottom sheet.
The same content as the picture, as text: every part and what it says when you open it.
One piece of engineered knit, tighter where the foot needs holding and more open where it needs to breathe.
A firm cup around the heel that keeps it centred over the midsole, stride after stride.
Holds: The heel centred
A thin overlay at the front that keeps the knit from wearing through where the toes flex.
Protects: The knit at the toe
Thin and gusseted - sewn to the upper on both sides - so it cannot slide off-centre on a long run.
Construction: Gusseted
Six pairs of eyelets. The top pair is a runner's loop, for a lace lock that keeps the heel from lifting.
A loop at the back to pull the shoe on without crushing the counter.
For: Pulling the shoe on
The removable insole, a few millimetres of foam shaped to the arch. It lifts out if a runner uses their own orthotic.
Most of the shoe's cushioning and most of its price: a light, springy foam that gives back much of the energy that lands in it.
A stiff, curved plate inside the foam. It does not spring like a trampoline; it stiffens the shoe and rolls the foot forward through the stride.
Rubber only where the shoe wears - heel and forefoot - to save weight, with a pattern of lugs for grip on wet roads.