The men's Mestari Run 1.5 Lunar Rock / Butterrum is KARHU’s premium max-cushion running shoe, perfect for neutral runners or those with early to mid-stage overpronation.
Featuring enhanced stack height, increased toe spring, and an upgraded AeroFoam cushioning formula, it delivers the ideal combination of softness, support, and energy return. Discover the Mestari 1.5, the perfect running shoes for overpronators. The refined IdealKnit mesh upper ensures a luxurious on-foot feel, providing secure midfoot support and plenty of stretch in the toe box for added comfort. Designed with a sleek, modern silhouette, the Mestari Run 1.5 is your ultimate training companion for a plush and efficient ride.
At KARHU, we understand that every runner’s feet are unique. That’s why the Mestari Run 1.5 is crafted using insights from our growing database of over 4 million 3D foot scans.
Details men’s KARHU Mestari Run 1.5:
- Boosted AeroFoam midsole delivers more energy return and maximum cushioning
- Refined IdealKnit upper construction for breathability and support
- Anatomical lacing for custom-fit comfort
- A deep, half-length Fulcrum cradles the foot for guidance and a smooth transition
- Additional toe spring and a Propulsion unit combine for a “rolling” ride
- Balanced drop of 8mm
- M-lock lacing to secure the midfoot
Whether you're just starting your running journey or logging daily miles as an experienced runner, the men’s KARHU Mestari Run 1.5 delivers the ultimate comfort and cushioning you need to keep going. Discover the perfect max cushion running shoe for overpronators in the early to mid-stage.
This updated model introduces a refined upper made from a softer IdealKnit mesh, offering breathable support through the midfoot while providing plenty of stretch for a secure yet comfortable fit. Enhanced AeroFoam cushioning maximizes stack height and resiliency, delivering a plush and protective ride that feels light underfoot. The deeper Fulcrum gently cradles your foot, guiding each step for smooth transitions from heel to toe. Whether you're tackling long runs or taking it easy, the Mestari Run 1.5 running shoes for men ensures a max cushion ride that’s efficient and comfortable.
Technologies men's KARHU Mestari Run 1.5:
- Anatomical lacing system
- Half-length Fulcrum + Propulsion unit
- Ortix fit
- AeroFoam midsole
- IdealKnit mesh construction
- M-lock
Weight US10: 340g / 12 oz
Heel-to-toe drop: 8mm (33mm-25mm)
KARHU Size Guides
Find your perfect KARHU shoe size with our complete size guides for lifestyle sneakers and running shoes. Compare US, UK and EU shoe sizes with foot length in millimeters (mm) to ensure the best fit for every KARHU model. Fot both sneakers and performance running shoes, measuring your foot length is the most accurate way to choose your ideal size.
KARHU Lifestyle sneakers size guide
This KARHU Lifestyle Sneakers Size Guide helps you choose the correct shoe size by comparing US, UK, EU and foot length in millimeters (mm). If you're looking for the Fusion 2.0, Legacy 96, Fusion XT, Mestari 76, Super Fulcrum, Fusion XC or any other KARHU sneakers, using your foot length is the most accurate way to determine your size. We recommend measuring your feet while standing and comparing the measurement with the chart below. If you are between two sizes, consider choosing the larger size for additional comfort.
| Shoes Length(mm) | US Men's Size | US Women's Size | UK Size | EU Size |
|---|---|---|---|---|
| 230 mm | 4 | 5.5 | 3 | 35 |
| 234 mm | 4.5 | 6 | 3.5 | 36 |
| 238 mm | 5 | 6.5 | 4 | 37 |
| 243 mm | 5.5 | 7 | 4.5 | 38 |
| 246 mm | 6 | 7.5 | 5 | 39 |
| 251 mm | 6.5 | 8 | 5.5 | 39.5 |
| 255 mm | 7 | 8.5 | 6 | 40 |
| 259 mm | 7.5 | 9 | 6.5 | 40.5 |
| 263 mm | 8 | 9.5 | 7 | 41.5 |
| 268 mm | 8.5 | 10 | 7.5 | 42 |
| 272 mm | 9 | 10.5 | 8 | 42.5 |
| 276 mm | 9.5 | 11 | 8.5 | 43.5 |
| 280 mm | 10 | 11.5 | 9 | 44 |
| 285 mm | 10.5 | 12 | 9.5 | 44.5 |
| 289 mm | 11 | 12.5 | 10 | 45 |
| 293 mm | 11.5 | 13 | 10.5 | 46 |
| 297 mm | 12 | 11 | 46.5 | |
| 301 mm | 12.5 | 11.5 | 47 | |
| 306 mm | 13 | 12 | 48 | |
| 310 mm | 14 | 13 | 49 | |
| 15 | 14 | 50.5 | ||
| 16 | 15 | 51.5 |
KARHU Running Shoes size guide
KARHU Men's Running Shoes size guide
This KARHU Men's Running Shoes Size Guide helps you find the right fit by converting US, UK, EU sizes and foot length in millimeters (mm). For the most accurate fit, measure your foot from heel to toe while standing and compare it to the size chart below. Running shoes should provide enough room in the toe box to allow your feet to expand naturally during longer runs. If you're running in the Fusion, Ikoni, Mestari Run or another KARHU performance model, selecting the proper size helps maximize comfort, stability and efficiency on every run.
| US Men's Size | UK Size | EU Size | Shoes Length (mm) |
|---|---|---|---|
| 8 | 7 | 41.5 | 263 mm |
| 8.5 | 7.5 | 42 | 268 mm |
| 9 | 8 | 42.5 | 272 mm |
| 9.5 | 8.5 | 43.5 | 276 mm |
| 10 | 9 | 44 | 280 mm |
| 10.5 | 9.5 | 44.5 | 285 mm |
| 11 | 10 | 45 | 289 mm |
| 11.5 | 10.5 | 46 | 293 mm |
| 12 | 11 | 46.5 | 297 mm |
| 12.5 | 11.5 | 47 | 301 mm |
| 13 | 12 | 48 | 306 mm |
| 14 | 13 | 49 | 310 mm |
| 15 | 14 | 50 | 315 mm |
KARHU Women's Running Shoes size guide
This KARHU Women's Running Shoes Size Guide allows you to compare US, UK, EU sizes and foot length in millimeters (mm) to ensure the best possible fit. We recommend measuring your feet at the end of the day when they are at their largest and comparing your measurement with the chart below. If your measurement falls between two sizes, choosing the larger size often provides extra comfort for longer distances. Using the correct size helps you get the most out of every training session and race.
| US Women's Size | UK Size | EU Size | Shoes Length (mm) |
|---|---|---|---|
| 6 | 4 | 37 | 234 mm |
| 6.5 | 4.5 | 37.5 | 238 mm |
| 7 | 5 | 38 | 243 mm |
| 7.5 | 5.5 | 39 | 246 mm |
| 8 | 6 | 39.5 | 251 mm |
| 8.5 | 6.5 | 40 | 255 mm |
| 9 | 7 | 40.5 | 259 mm |
| 9.5 | 7.5 | 41.5 | 263 mm |
| 10 | 8 | 42 | 268 mm |
| 10.5 | 8.5 | 42.5 | 272 mm |
| 11 | 9 | 43 | 276 mm |
| 12 | 9.5 | 44.5 | 285 mm |

FUSION

Guidance
Cushion
Propulsion
IKONI

Guidance
Cushion
Propulsion
MESTARI RUN

Guidance
Cushion
Propulsion














































