Karhu Fusion 4.5
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Product Details
The Karhu Fusion 4.5 is a neutral daily trainer built around one idea: keep you rolling forward smoothly, whether you’re cruising easy miles or clicking into a steady tempo. A nitrogen-infused AeroFoam midsole delivers a balanced blend of cushioning and rebound, while Karhu’s Fulcrum + Propulsion geometry creates a guided, efficient transition that feels quick without being harsh. Up top, the refined IdealKnit upper aims for a secure, streamlined fit with comfort upgrades that make it easy to rack up miles.
Highlights
- Nitrogen-infused AeroFoam midsole for responsive cushioning and a lively feel underfoot
- Fulcrum + Propulsion unit promotes a smooth, forward-rolling transition from landing to toe-off
- Refined IdealKnit upper improves breathability while maintaining a snug, performance-oriented fit
- M-Lock lacing system helps lock down the midfoot without feeling overly restrictive
- Softer, redesigned tongue and broader laces for a more comfortable, premium step-in feel
- Outsole geometry tuned for confident, dynamic toe-offs and steady road traction
- Reflective details add visibility for early-morning and after-dark runs
Brand | Karhu |
|---|---|
Type | Road |
Support | Neutral |
Heel-to-Toe Drop | 6 mm |
Heel Height | 28 mm |
Forefoot Height | 22 mm |
Weight | - |
Release Year | - |
Model | Karhu Fusion |
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Karhu Fusion 4.5
-
| Heel-to-Toe Drop | 6 mm |
| Heel Height | 28 mm |
| Forefoot Height | 22 mm |
| Weight | - |
| Release Year | - |