Karhu asks you to accept cookies for performance, social media and advertising purposes.
Social media and advertising cookies of third parties are used to offer you social media functionalities and personalized ads.
To get more information about these cookies and the processing of your personal data, check our
Privacy & Cookie Policy.
Do you accept these cookies and the processing of personal data involved?
WOMEN'S FAST6 MRE CHARCOAL/BELLFLOWER
NOTE: FAST6 RUNS SMALLER THAN PREVIOUS FAST MODELS. PLEASE SIZE UP BY A 1/2 A SIZE.
SKU_F200174
The full length Fulcrum midsole makes the Fast a cushioned shoe upon impact and directs all forces forward.
Heel/Toe:
22 mm / 12 mm
Karhu Feet Measurement And Table
Place a piece of paper on the floor with one end against the wall.
Put your foot on the piece of paper with your heel against the wall
Put your foot on the piece of paper with your heel against the wall
Take a pencil and mark the end of your longest toe on the paper.
Repeat for your other foot.
Repeat for your other foot.
Measure in cm from the wall (heel) to the longest point (toe).
Take the larger measurements and compare it with our shoe sizes in the size chart.
Take the larger measurements and compare it with our shoe sizes in the size chart.
| Feet Measurement (in centimeters) |
| US Men Size |
| US Women Size |
| EU Size |
| UK Size |
| 23 | 23.4 | 23.8 | 24.3 | 24.6 | 25.1 | 25.5 | 25.9 | 26.3 | 26.8 | 27.2 | 27.6 | 28 | 28.5 | 28.9 | 29.3 | 29.7 | 30.1 | 30.6 | 31 |
| 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | - | - | - | - |
| 35 | 36 | 37 | 38 | 39 | 39.5 | 40 | 40.5 | 41.5 | 42 | 42.5 | 43.5 | 44 | 44.5 | 45 | 46 | 46.5 | 47 | 48 | 49 |
| 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | - |
Swipe horizontally to see more
The support of the full length Fulcrum units ensures a stable running shoe from heel to toe.
The Fulcrum unit is able to reduce pronation throughout the entire stance phase onto toe off.
The Fulcrum unit’s geometry ensures that the shoe never over corrects the foot into a supinated position.
This model provides more guidance in the forefoot compared to Karhu Ikoni, Fusion and previous versions Flow and Fluid.
Weight Size 10 US 320G/11.2 Oz, Heel drop 10 MM