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S1

S1

Black, Road Running, Daily Training

$150.00 USD
$150.00 USD
Sale Sold out
Shipping calculated at checkout.
Gender
Size（US）
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SIZE GUIDE

Men's

USA 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13 14
EUR 40 40.5 41 42 42.5 43 44 44.5 45 46 47 48 49
UK 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 12 13
CM SIZE 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 31 32

Women's

USA 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11
EUR 35.5 36 36.5 37.5 38 38.5 39 40 40.5 41 42 42.5 43
UK 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9
CM SIZE 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28

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PRODUCT DETAILS

Weight

9.35 oz / 265 g(US M9)

Heel-To-Toe Drop

10 mm

Cushion

Responsive
Balanced
Plush

Stability

Neutral
Moderate
Stable
Activity
Road Running
Best for
Training Sessions of 100 km and below
Pace
8-14 min/mi (5-9 min/km)
Upper
Jacquard Engineered Mesh, 100% Recycled Yarn
Stack Height
Heel 36 mm, Toe 26 mm

SHIPPING & RETURNS

  • The estimated delivery time is 2-5 working days.
  • We offer free shipping on all orders and free return or exchange on unworn, unwashed shoes within 30 days.

KEY FEATURES

  • ZeroSag midsole insert with little degradation during long runs
  • LightCELL midsole base featuring excellent lightness and bounce
  • GOFLOW midsole geometry to guide your stride
  • Outstanding stability for your long-distance training
  • Breathable and eco-friendly

S1 Black, Road Running, Daily Training

All Day, Every Day

The S1 is our take on the everyday road trainer, engineered for ultras. Designed to excel on the longest training runs, the S1 has been proven in training and competition the world over. With all the comfort, support and longevity you need, the S1 is the greatest training companion any ultrarunner could ask for.

S1gned, Sealed, Delivered

In the spring of 2024, Asian ultrarunner Lucong Geng traveled to Scotland to run the JOGLE, a multistage road ultra to the most southerly tip of England. Covering 854 miles (1,374 km) over 17 daily stages, Lucong broke the Asian record for the route, covering more than 600 miles of the journey in a single pair of Mount to Coast S1s.

  • Cushioning You Can Rely On

    Meet ZeroSag, our revolutionary midsole insert crafted in collaboration with BASF. Originally designed to perform in the shock absorbers of high-speed racing cars, ZeroSag guarantees consistent cushioning and stability on the longest journeys, day after day, mile after mile.

  • Lighten Up and Find Your Pace

    The foundational element of the S1's midsole, our LightCELL compound is a PEBA-hybrid powered by the industry-leading nitrogen supercritical foaming process. The result is 50 percent less weight and 45 percent more bounce when compared with traditional EVA midsoles.

  • Flow Like Water

    Engineered to guide your foot from heel to toe, GOFLOW is our industry leading midsole geometry designed to help you find your flow, from the first mile to the last. Informed by our own biomechanical research, GOFLOW precisely guides each foot strike in an optimal pattern, ensuring an enjoyable running experience, day after day.

  • Eco-Friendly Breathability

    Our engineered Jacquard mesh combines exceptional softness with a hardwearing, tailored fit. And by utilizing 100 percent recycled yarn, it's more sustainable, so it plays a part in creating a greener planet.

Details You'll Love

Customer Reviews

Based on 3 reviews
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J
J.C.
Fit:
Narrow
Feels roomy
Sizing:
Runs small
Runs large
Width:
Runs narrow
Runs wide
S1

I’ve gotten multiple compliments while wearing them people say they look “sleek”. They fit true to size have a slightly wide toe box though. I ran a couple miles in them super comfortable and durable so far.

A
Aiden H.
Fit:
Narrow
Feels roomy
Sizing:
Runs small
Runs large
Width:
Runs narrow
Runs wide
Highly recommend

Incredible. That's one word I could use for it. These shoes are amazingly comfy to travel in and give my feet MUCH more support than my other sneakers did. Not only that, but they somehow got more comfy the more I started to wear them in. Amazing shoes, would highly recommend for anyone to wear quite honestly.

H
H.L.
Fit:
Narrow
Feels roomy
Sizing:
Runs small
Runs large
Width:
Runs narrow
Runs wide
Lightweight, Comfortable, Cushiony

I have been rocking the S1 for about a month now. The cushioning setup makes it great for jogging. I consider myself with pretty wide feet, but this shoe fits well on my feet.

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