The upper is one continuous piece of engineered mesh, knit tighter across the midfoot and looser through the toe box. No seams to rub, no overlays to fail after a wet mile.

A dual-density foam sits under the heel and the forefoot separately, so landing and toe-off get different amounts of give. It softens for eight hundred kilometres before it starts to pack down, well past what most runners log before replacing a pair anyway.

Rubber lugs are angled forward under the forefoot and backward under the heel, so grip works with the direction you are actually moving. Wet asphalt and dry track behave almost the same underfoot.

Runs true to size for most feet, though anyone between sizes should size up rather than down. Half sizes exist from six through eleven, and the heel counter is stiff enough on day one that it will not stretch out into something looser by month three.