# What are the lightest racing flats available in the market? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the lightest racing flats available in the market?

## Products

### adidas Zenboost
```yaml
product: adidas-zenboost
brand: adidas
price_gbp: 62.48
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
drop: 6
weight: 7.41
stack_height: 23
upper_material: Textile
```

- **Price:** £62.48 [^1]
- **Summary:** The adidas Zenboost is a cushioned road-running shoe with a responsive BOOST+ midsole, breathable textile upper, and durable rubber outsole. It suits everyday runners, gym users, and longer easy runs who prioritize comfort over race-day minimalism.
- **Ideal For:** At 7.41 oz, the Zenboost is relatively light for a cushioned trainer, but its BOOST+ midsole and 23 mm stack make it better suited to lightweight everyday running than to the lightest racing-flat category.
- **Additional Sources:** [^2]

### PUMA Fast-FWD Nitro Elite 2
```yaml
product: puma-fast-fwd-nitro-elite-2
brand: PUMA
price_gbp: 146.99
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
drop: 8
weight: 4.6
stack_height: 31
upper_material: ULTRAWEAVE
```

- **Price:** £146.99 [^3]
- **Summary:** The PUMA Fast-FWD Nitro Elite 2 is a lightweight short-distance racing shoe with NITROFOAM Elite cushioning and a carbon-fibre PWRPLATE for responsive propulsion. Its low stack and aggressive, snappy ride suit neutral runners targeting fast 5K and 10K races or interval sessions.
- **Ideal For:** At 4.6 oz with a 31 mm heel stack, 8 mm drop, lightweight ULTRAWEAVE upper, and carbon-fibre PWRPLATE, this is specifically suited to runners seeking one of the lightest road racing flats for fast 5K and 10K efforts.
- **Additional Sources:** [^4]

### ASICS Hyper Speed 6
```yaml
product: asics-hyper-speed-6
brand: ASICS
price_gbp: 95.53
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
drop: 6
weight: 5.6
stack_height: 21 heel / 15 forefoot
upper_material: Double-layered mesh with welded overlays
```

- **Price:** £95.53 [^5]
- **Summary:** The ASICS Hyper Speed 6 is a lightweight, flexible racing flat with a low 21 mm heel and 15 mm forefoot stack. Its breathable mesh upper and roomy fit make it suitable for speed workouts, road racing, and runners who prefer a responsive, minimally structured shoe.
- **Ideal For:** At 5.6 oz with a 21 mm heel stack, 15 mm forefoot stack, and flexible racing-flat construction, the ASICS Hyper Speed 6 is a strong option for runners seeking one of the lightest racing flats available.
- **Additional Sources:** [^6]

---
## References & Sources
[^1]: adidas, accessed 2026-08-27. https://www.adidas.com/us/zenboost-running-shoes/HQ9527.html
[^2]: SHEIN, accessed 2026-08-27. https://us.shein.com/Adidas-Zenboost-Boost-Running-Shoes-Men-Running-Shoes-p-555151398.html
[^3]: PUMA, accessed 2026-08-27. https://us.puma.com/us/en/pd/fast-fwd-nitro-elite-2-mens-road-running-shoes/313692
[^4]: Running Warehouse, accessed 2026-08-27. https://www.runningwarehouse.com/PUMA_Fast-FWD_Nitro_Elite_2/descpage-PUFNEM2.html
[^5]: ASICS, accessed 2026-08-27. https://www.asics.com/ca/en-ca/hyper-speed-6-1013a237-401
[^6]: Boréal Running, accessed 2026-08-27. https://borealrunning.com/en/products/asics-hyper-speed-6-unisex-running-shoes