M Atmos 2 Black/White
Finding the right shoe size is important for comfort and performance. Use the Topo Athletic size charts below and follow our measuring guide to find the right size.
Topo Athletic shoes tend to fit slightly smaller than standard sizing. We recommend choosing half a size larger than your usual shoe size.
Topo Athletic shoes use US sizing, shown in the left-hand column of the size chart.
Please note: The measurements in centimeters refer to the insole length, not your foot length.
Topo Athletic Men's Size Chart
| US | EU | UK | CM (Insole Length) |
|---|---|---|---|
| 8 | 41 | 7 | 26 |
| 8.5 | 42 | 7.5 | 26.5 |
| 9 | 42.5 | 8 | 27 |
| 9.5 | 43 | 8.5 | 27.5 |
| 10 | 44 | 9 | 28 |
| 10.5 | 44.5 | 9.5 | 28.5 |
| 11 | 45 | 10 | 29 |
| 11.5 | 46 | 10.5 | 29.5 |
| 12 | 46.5 | 11 | 30 |
| 12.5 | 47 | 11.5 | 30.5 |
| 13 | 48 | 12 | 31 |
| 14 | 49 | 13 | 32 |
| 15 | 50 | 14 | 33 |
Topo Athletic Women's Size Chart
| US | EU | UK | CM (Insole Length) |
|---|---|---|---|
| 6 | 37 | 4 | 22.5 |
| 6.5 | 37.5 | 4.5 | 23 |
| 7 | 38 | 5 | 23.5 |
| 7.5 | 38.5 | 5.5 | 24 |
| 8 | 39 | 6 | 24.5 |
| 8.5 | 40 | 6.5 | 25 |
| 9 | 40.5 | 7 | 25.5 |
| 9.5 | 41 | 7.5 | 26 |
| 10 | 42 | 8 | 26.5 |
| 10.5 | 42.5 | 8.5 | 27 |
| 11 | 43 | 9 | 27.5 |
| 12 | 44.5 | 10 | 28.5 |
How to Find Your Topo Athletic Size
A running shoe with the right fit is important for both comfort and performance. Follow the steps below to measure your feet at home and use the Topo Athletic size chart to find your size.
Remember that the centimeter measurements in the size chart refer to the length of the insole, not the length of your foot.
Tips Before Measuring
- Measure your feet in the evening, when they are usually at their largest after a full day of activity.
- Measure both feet. If your feet are different lengths, use the measurement of the longer foot.
- Wear the socks you normally use for running when measuring your feet.
- Topo Athletic shoes tend to fit slightly smaller than standard sizing. We recommend choosing half a size larger than your usual shoe size.
- If you are between two sizes, choose the larger size.
What You Need
- A piece of paper larger than your foot
- A pen or pencil
- A ruler or measuring tape
- The socks you plan to wear with your running shoes
How to Measure Your Feet
- Place a piece of paper on a flat floor with one edge against a wall.
- Stand on the paper with your heel against the wall. Wear the socks you normally use for running.
- Mark the position of your longest toe on the paper.
- Measure the distance from the wall to the mark in centimeters.
- Repeat the process for your other foot.
- Use the measurement of your longer foot when choosing your size.
- Compare your measurement with the Topo Athletic size chart above. Remember that the CM measurement in the chart refers to the insole length.
Topo Athletic Fit
Topo Athletic shoes are designed with a roomy toe box that gives your toes space to spread naturally, combined with a secure fit through the midfoot and heel.
When trying on your shoes, your toes should have enough room to move comfortably and should not feel restricted.
For the best starting point, choose half a size larger than your usual shoe size, as recommended for Topo Athletic shoes.
The size chart is a guide. The ideal fit can vary depending on your foot shape, the socks you wear and the Topo Athletic model you choose.

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Topo Atmos 2
The Topo Atmos 2 is a max-cushioned running shoe designed for runners who want exceptional comfort during daily training, long-distance runs and everyday walking. Combining a highly cushioned platform with Topo's naturally roomy fit, it delivers a smooth and balanced ride mile after mile.
The updated ZipFoam™ midsole provides a softer feel with improved energy return, making every stride comfortable while maintaining a responsive running experience. The redesigned 40 x 35 mm platform offers plenty of protection without feeling overly bulky.
The engineered upper is made with recycled materials and provides breathable comfort together with a secure midfoot fit. Topo's signature roomy toe box allows your toes to move naturally, helping improve comfort on both short and long runs.
A lighter outsole with improved traction delivers confident grip on a variety of road surfaces, while the OrthoLite® Performance insole adds immediate step-in comfort.
Best for
- Daily training
- Long-distance running
- Recovery runs
- Walking
- Neutral runners
- Road running
Whether you're building weekly mileage, preparing for your next race or simply looking for a highly cushioned shoe for everyday use, the Topo Atmos 2 is built to keep you comfortable every step of the way.
At Runforest, our commitment is to ensure prompt fulfillment of all deliveries, with a standard delivery time ranging between 2-5 working days, unless otherwise specified in the chosen delivery option.
Shipping costs, if applicable, may vary but will be transparently displayed before the final purchase at the checkout.