| Brand | Puma |
| Model | Fast-Trac Nitro 3 GTX |
| Year | 2024 |
| Gender Version | Unisex |
| Category | Trail Running Long Distance Training |
| Terrain | Asphalt |
| Midsole Technology | 全掌 NITROFOAM 氮氣中底 |
| Upper Material | INVISIBLEFIT GORE‑TEX |
| Outsole Configuration | PUMAGRIP ATR |
| Forefoot Thickness | 23.0mm |
| Heel Thickness | 31.0mm |
| Drop | 8mm |
| Weight | 272g |
| Fit | Tight |
| Breathability | (4/5) |
| Stability | High |
| Cushion Distribution | Even |
| Feel Attribute | 越野 多地形 防水抓地 舒適穩定 |
| Bounce | (4/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Trail Runner |
| Weight Range | Medium/Heavy |
| Width | Standard |
| Arch Type | Medium |
| Landing Type | Mid/Forefoot |
| Price | $176.00 USD (approx.) | Durability | 800 km | Overall Rating | 4.0 |
它是 trail / 越野／多地形定位的鞋款 — 中底用全長的 NITROFOAM 泡棉，提供「輕量 + 緩震 + 回彈」兼顧。
外底使用 PUMA 的 PUMAGRIP ATR 橡膠 + 約 4 mm 的鞋底顆粒，抓地、防滑、耐磨 — 對泥地、碎石、濕滑、複雜、不平路面抓地力不錯，很適合山徑、小徑、郊山步道或路況不穩的環境。
鞋面有防水 / 防潑水的 GORE-TEX（或類似防水膜）設計，可以在雨天或濕滑地面保持乾爽，比一般路跑鞋更適合越野或戶外環境。
heel-to-toe drop 約 8 mm／stack height 約 31mm-23mm，整體感偏中等，不是極低落差也不是超厚底，比較平衡。
