The Adidas Ultraboost combines energy-returning Boost cushioning with a Primeknit upper, engineered for long-distance runners seeking sustained comfort and adaptability. This model (1183B771-003) delivers a responsive stride, ideal for road running and daily training across various foot types.
**Key Features**:
- **Boost midsole**: High-energy return foam for efficient propulsion and all-day cushioning.
- **Primeknit upper**: Adaptive fit that wraps the foot for secure, breathable wear.
- **Stretchweb outsole**: Flexible continental rubber for durable grip on multiple surfaces.
- **Heel counter**: Internal support system for stable heel lockdown during transitions.
Size Charts
