Behind the Design:
ACG Ultrafly
From sketch to screaming fast.
Behind the Design: ACG Ultrafly
From sketch to screaming fast.
We watched the fastest 100-mile runners and the message was loud:
A waterlogged shoe is certain death.
So we tested our mesh for the deluge.
Satisfied only by ruthless drainage; a sieve for the most unrelenting wet you can find.
Holey and light 100 miles later, and more to be had.
We watched the fastest 100-mile runners and the message was loud:
A waterlogged shoe is certain death.
So we tested our mesh for the deluge.
Satisfied only by ruthless drainage; a sieve for the most unrelenting wet you can find.
Holey and light 100 miles later, and more to be had.
We watched the fastest 100-mile runners and the message was loud:
A waterlogged shoe is certain death.
So we tested our mesh for the deluge.
Satisfied only by ruthless drainage; a sieve for the most unrelenting wet you can find.
Holey and light 100 miles later, and more to be had.
We wrapped the outsole by zone to save weight.
Fortified at the toe but with a naked heel, for flying.
Inside, a carbon plate, split to flex over tree roots and rocks who'd like to
see you stumble; built-in adaptation for terrain unknown.
And on the bottom, lines inspired by trailblazing markers say KEEP
GOING THERE'S MORE.
Inside, a carbon plate, split to flex over tree roots and rocks who'd like to
see you stumble; built-in adaptation for terrain unknown.
And on the bottom, lines inspired by trailblazing markers say KEEP
GOING THERE'S MORE.
The whole thing grounded by a Vibram sole—
Versatile tread for whatever ails you,
Wet sand or pebbles or a downhill zag.
The whole thing grounded by a Vibram sole—
Versatile tread for whatever ails you,
Wet sand or pebbles or a downhill zag.
Then we put it to the test. Again. And again. So many agains.
Through mud, water, grit and gravel. More miles than sanity.
Until we could say:
It's our most-tested trail product yet.
Neurotically tuned for racing; our answer to the elements.
Then we put it to the test. Again. And again. So many agains.
Through mud, water, grit and gravel. More miles than sanity.
Until we could say:
It's our most-tested trail product yet.
Neurotically tuned for racing; our answer to the elements.