The Nike ACG Ultrafly Trail Running Shoes combine trail-ready durability with road racing cushioning, ideal for runners who demand versatility across mixed terrains. The HF5668-400 delivers responsive energy return and reliable traction for both competitive racing and daily training.
**Key Features:**
- Lightweight engineered mesh upper for enhanced breathability and a secure fit
- Responsive cushioning midsole absorbs impact for long-distance comfort
- Durable rubber outsole with aggressive tread for confident grip on trail surfaces
- Breathable design keeps feet cool during high-intensity runs
Size Charts
