Price: $ MSRP: $

Bringing efficient motion and nimble performance to the trails, the Karhu Flow3 Trail Fulcrum offers minimal cushioning and a firm ride.



Take on the trails with the efficient transition of the Karhu Flow3 Trail Fulcrum. A lugged outsole is built to handle technical terrain with ease, and Karhu’s Fulcrum technology ensures a smooth ride through toe-off for a nimble run.

Model Number:

Weight: 7.8 oz (size 8)

Stack Height: Heel (21mm), Forefoot (15mm)

Available Widths: B=Medium

How It Fits (based on width B)

  • Sizing: Fits large; purchase 1/2 size smaller than standard running shoe length
  • Heel: Medium
  • Midfoot: Medium volume
  • Forefoot: Medium to wide
  • Toe-Box Height: Medium to high
  • Arch Structure: Medium
  • Shoe Shape: Semi-Curved


The Flow3 Trail Fulcrum is a moderate featured, minimum neutral shoe designed for training and racing.


  • CMEVA is compression molded EVA which is an industry standard midsole material designed to offer durable cushioning.


  • Fulcrum is a high durometer EVA wedge located from the heel to the midfoot. It is engineered to promote an efficient heel to toe transition by converting heel strike energy into forward momentum.


  • Open Mesh is utilized throughout the entire upper and provides breathability.
  • Side Vamp Wall is water resistant and provides protection from trail elements.
  • Reflective Details increase visibility in low-light conditions.
  • Traditional Sockliner provides contoured support and cushioning.
  • Strobel Last with the upper stitched to a full length EVA board for a comfortable underfoot feel.


  • Counter Grip Outsole consists of compression molded rubber and provides multidirectional traction on a variety of surfaces.

Footwear Performance Characteristics

Pronation Control: What's This?

  • Neutral
    • Min
    • Mod
  • Support
    • Min
    • Mod
    • Max
  • Motion Control
    • Mod
    • Max

Heel-Toe Offset (mm): What's This?

  • 0
  • 1-2
  • 3-4
  • 5-6
  • 7-8
  • 9-10
  • 11+

Stack Height:

  • Barefoot
  • Minimal
  • Low
  • Medium
  • High
  • Maximal


  • Road
  • Road-Trail
  • Hard Trail
  • Varied Trail
  • Soft Trail

Shoe Type:

  • Premium
  • Standard
  • Performance
  • Racing

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