# Which racing flats have the best breathability for hot weather running? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which racing flats have the best breathability for hot weather running?

## Products

### Saucony Kilkenny XC10 Flat S31001-200
```yaml
product: saucony-kilkenny-xc10-flat-s31001-200
brand: Saucony
price_gbp: 62.51
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 5.4
spike_pattern: Spikeless with aggressively lugged rubber outsole
upper_material: Open mesh
```

- **Price:** £62.51 [^1]
- **Summary:** The Saucony Kilkenny XC10 Flat is a lightweight, spikeless cross-country racing shoe with PWRRUN foam cushioning and an aggressively lugged rubber outsole. Its breathable mesh upper and agile design suit runners competing in 3K to 10K cross-country races.
- **Ideal For:** The open-mesh upper provides ventilation, making this lightweight 5.4 oz spikeless flat a strong choice for hot-weather racing.
- **Additional Sources:** [^2], [^3]

---
## References & Sources
[^1]: Saucony, accessed 2026-08-28. https://www.saucony.com/en/kilkenny-xc10-flat/60334U.html
[^2]: Running Warehouse, accessed 2026-08-28. https://www.runningwarehouse.com/Saucony_Kilkenny_XC10_Flat/descpage-SKUXCF2.html
[^3]: Fleet Feet, accessed 2026-08-28. https://www.fleetfeet.com/products/saucony-kilkenny-xc-10-flat