Mount to Coast

C1 Womens

Mount to Coast

C1 Womens

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Gender MensWomens
Colour
Shoe Size (Womens US)
Quantity
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The C1 is our super trainer, built to make every mile more fun. Its dual-layer midsole pairs a top layer of CircleCELLâ„¢ foam, crafted from sustainable materials, for responsive cushioning, over a rubberised base layer that adds support and stability underfoot.

A wider base and higher sidewalls keep you steady deep into long runs, while the TUNEDFITâ„¢ dual lacing system lets you tune the forefoot and midfoot separately for a locked-in fit. Built for long-distance and multi-day efforts, recovery days and tempo runs alike.

Specifications
Drop
6 mm
Heel 42 mm, Forefoot 36 mm
Fit
SmallAverageGenerous
Cushion
ResponsiveBalancedPlush
Stability
NeutralModerateStable
  • ActivityRoad
  • Best forLong-distance runs, Multi-day runs, Recovery runs, Tempo runs
  • MidsoleCircleCELLâ„¢
  • Sole compoundRubberised EVA
  • LacingTUNEDFITâ„¢ Dual Lacing System
  • UpperJacquard
  • WidthB
  • APMA SealYes

Selecting Your Mount to Coast Shoe Size:

EU sizing is the common scale across the range. Find your EU size and read across for the US equivalent in the range you are buying.

EU US Mens US Womens Foot Length, Mens (cm) Foot Length, Womens (cm)
35.5 - 5 - 22
36 - 5.5 - 22.5
36.5 - 6 - 23
37.5 - 6.5 - 23.5
38 - 7 - 24
38.5 - 7.5 - 24.5
39 - 8 - 25
40 7 8.5 25 25.5
40.5 7.5 9 25.5 26
41 8 9.5 26 26.5
42 8.5 10 26.5 27
42.5 9 10.5 27 27.5
43 9.5 11 27.5 28
44 10 - 28 -
44.5 10.5 - 28.5 -
45 11 - 29 -
46 11.5 - 29.5 -
47 12 - 30 -
47.5 12.5 - 30.5 -
48 13 - 31 -
49 14 - 32 -

Mount to Coast publish foot length separately for the men's and women's ranges, and the two differ by about 5 mm at the same EU size. Measure your foot, then read the foot length column for the range you are buying. If you are between sizes, choose the larger size for better comfort.

Measuring your foot

You will need a piece of paper that fits your foot and a writing instrument to mark your foot's length. Having someone to help you with this could also be beneficial.

  1. On a hard floor, put a piece of paper against a wall.
  2. Stand on the paper in socks you would normally wear with this type of shoe.
  3. Ensure the back of your heel is against the wall and that you're placing your weight evenly on your foot.
  4. Ask someone to make a mark on the paper at the end of your longest toe.
  5. Measure the distance from the edge of the paper that touched the wall where your heel was to the mark at your longest toe. That is the length of your foot.
  6. Repeat this process on your other foot.
  7. It's common to have one foot bigger than the other, so make sure you measure both feet. Pick your shoe size based on the length of your longer foot.
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C1 Womens

C1 Womens

$299.99

Road super trainer

Mount to Coast C1

The super trainer built for ultra distances.

Trains in the C1

Matthieu Bonne

Belgian record breaker Matthieu Bonne has made endurance his speciality across swimming, cycling and running, and took the 48-hour running record in 2025. He prepares at altitude in Kenya, where his schedule often stacks back-to-back 100 km days. That is the kind of training load the C1 is built for.

The highlights

What makes the C1

Energised

Dual-layer midsole

A generous layer of CircleCELLâ„¢ foam sits over a rubberised EVA base for a stable platform. CircleCELL is the same supercritical foam used in the H1, with energy return on par with PEBA and up to twice the lifespan.

Stable and light

42 mm stack, 6 mm drop

A wide, stable stance and a dual-layer midsole at 267 g (men's US 9). Built to let you push speed and distance in training so race day feels easier.

Tune in

TUNEDFITâ„¢ dual lacing

Set forefoot and midfoot fit separately and adjust on the go as your feet swell over long distances.

Colour story

Pulse

Training is a balancing act: enough load to come back stronger, not so much that you break. Pulse takes its cue from the red line every runner rides when they test their limits.

The Features You Will Really Love About The

C1 Womens

The top bragworthy features

The super trainer, energized.

The C1 features a dual layer midsole, utilizing a generous layer of our sustainable CircleCELL foam above a rubberized EVA bottom layer that provides the stability you need to go beyond. CircleCELL is the same supercritical foam used in our award-winning H1, delivering energy return on par with PEBA-based foams, while providing double PEBA's running lifespan.

Stability, elevation, enlightenment.

Despite its wide, stable stance and dual-layer midsole, the C1 comes in at a feathery 9.4 oz / 267 g (US M9), because long distance performance shouldn't weigh you down. Featuring a 42 mm stack height and 6 mm drop, the C1 is optimized to let you push your limits of speed and distance in training, so that race day comes easy.

Tune in, don't drop out.

The TUNEDFIT Dual Lacing System offers separately customizable fit for the forefoot and midfoot. Because we know that in the ultrarunner's pursuit of distance, feet can swell and change shape, and having a shoe that can adapt to those changes on the fly can be the difference between minor discomfort and injury.

C1 Mens - Endurance Edge
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