Karhu Fusion 3.5 F101006 | Men's Running Shoes Blue Green
👟 PURCHASE INFO — Size & Fit
The Karhu Fusion 3.5 F101006 fits true to size compared to standard EU sizing. Wide feet? Choose one size up. Fulcrum technology ensures superior stability and cushioning for daily running and long distances.
- 🎨 Color: Blue / Green
- 📐 Drop: 10mm — ideal for runners with neutral pronation or slight overpronation
- ⚖️ Estimated weight: ~290g (size 42)
- 🔢 SKU: 840250371846 | EAN: 840250371846
- 🇫🇮 Brand: Karhu — Finnish brand founded in 1916, running pioneer
⚙️ Technical Specifications
- 🦴 Midsole: Fulcrum Technology — cushioning, control, and stability in a single system
- 🧵 Upper: Reinforced breathable mesh — lightness and structural support
- 💨 Outsole: Durable rubber with multi-surface grip (asphalt, track, mixed terrain)
- 📐 Drop: 10mm
- 🌡️ Ideal use: Daily running, long distances, continuous training
- 📦 Available sizes: 41.5 / 42 / 42.5 / 43.5 / 44 / 44.5 / 45 / 46 / 46.5
📏 Size Chart
| EU Size | Foot length (cm) |
|---|---|
| 41.5 | 26.5 |
| 42 | 27.0 |
| 42.5 | 27.5 |
| 43.5 | 28.0 |
| 44 | 28.5 |
| 44.5 | 29.0 |
| 45 | 29.5 |
| 46 | 30.0 |
| 46.5 | 30.5 |
🚫 When NOT to choose this model
The Fusion 3.5 is ideal for daily running and long distances on asphalt. If you're looking for a fast racing shoe, trail shoe, or a Karhu model with more cushioning, consider:
📚 Fulcrum Technology: Karhu's secret
Karhu's patented Fulcrum technology positions a rigid element in the midsole that acts as a lever, transferring weight from heel to toe more efficiently. The result: less muscle fatigue, smoother transition, and greater lateral stability compared to shoes with only foam. Ideal for runners seeking control without sacrificing comfort on long distances.
❓ FAQ
Do they fit true to size? Yes, regular fit. Wide feet → one size up recommended.
What type of runner are they ideal for? Neutral runners or those with slight pronation, medium to long distances (10km+), daily training on asphalt.
Is Karhu a reliable brand? Yes, a Finnish brand founded in 1916 — one of the oldest running brands in the world, with internationally recognized patented technologies.
How long does the outsole last? On average 600–800km with regular use on asphalt, thanks to the durable rubber outsole.
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