| Brand | Nike |
| Model | InfinityRN 4 |
| Year | 2023 |
| Gender Version | Unisex |
| Category | Daily Slow Run Daily Training Long Distance Training |
| Terrain | Asphalt |
| Midsole Technology | ReactX（比前代 React 回彈提升 13%） |
| Carbon Plate Structure | 無碳板 |
| Upper Material | Flyknit（再生材質佔比 50% 以上） |
| Outsole Configuration | 全掌橡膠（特殊花紋設計） |
| Forefoot Thickness | 30.0mm |
| Heel Thickness | 39.0mm |
| Drop | 9mm |
| Weight | 280g |
| Fit | Comfortable |
| Breathability | (4/5) |
| Stability | Medium |
| Cushion Distribution | Even |
| Feel Attribute | 柔軟、穩定、滾動感 |
| Bounce | (4/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Beginner |
| Weight Range | Medium/Heavy |
| Width | Standard (Runs Large, Suggest Half Size Down) |
| Arch Type | Medium |
| Landing Type | Mid/Heel |
| Price | $80.00 USD (approx.) | Durability | 1,000 km |
Nike InfinityRN 4 是一雙專為日常訓練與長距離慢跑設計的高緩震鞋款，搭載全新 ReactX 中底，提供比前代 React 更高的能量回饋與柔軟腳感。中底厚實，搭配搖桿式幾何設計與寬前掌結構，提升穩定性與步伐流暢度。鞋面為 Flyknit 材質，柔軟貼合且透氣，鞋領與鞋舌設計提升整體舒適度。外底採用全掌橡膠，耐磨性佳，但在濕滑地面抓地力略有不足。整體鞋感偏柔軟穩定，適合中足或後跟著地的跑者進行日常堆量與恢復跑。實測者指出，InfinityRN 4 在 5:30～6:30 配速區間表現穩定，適合追求舒適與支撐的跑者。若你正在尋找一雙具備高緩震、穩定支撐與環保理念的日常訓練鞋，InfinityRN 4 是 Nike 品牌中最值得信賴的選擇之一。
