| Brand | Puma |
| Model | liberate nitro 2 |
| Year | 2023 |
| Gender Version | Unisex |
| Category | Daily Slow Run Daily Training Light Exercise Tempo Run Speed Training |
| Terrain | Asphalt |
| Midsole Technology | 全掌 NITROFOAM，輕量回彈 |
| Upper Material | 工程網布 |
| Outsole Configuration | PUMAGRIP 橡膠，乾濕路面抓地力佳 |
| Forefoot Thickness | 20.0mm |
| Heel Thickness | 28.0mm |
| Drop | 8mm |
| Weight | 220g |
| Fit | Snug |
| Breathability | (5/5) |
| Stability | Medium |
| Cushion Distribution | Heel Biased |
| Feel Attribute | 敏捷 輕量 速度 回彈靈活 |
| Bounce | (4/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Intermediate |
| Weight Range | Medium/Light |
| Width | Standard |
| Arch Type | Medium |
| Landing Type | Midfoot |
| Price | $76.67 USD (approx.) | Durability | 500 km | Overall Rating | 3.0 |
它用的是 PUMA 的 NITRO foam 中底 + 輕量 mono‑mesh 鞋面 + PUMAGRIP 橡膠大底。中底的 Nitro foam 是氮氣發泡的泡棉，質地偏「彈／回饋／輕量」 → 讓鞋子在短中距離跑時感覺比較敏捷、輕快。
簡單說，這雙不是專為「厚墊／極端緩震／長距離／重訓練鞋」設計，而是偏向「敏捷／輕量／速度／短 – 中距離」用途。
