| Brand | Saucony |
| Model | Endorphin Speed 4 |
| Year | 2024 |
| Gender Version | Unisex |
| Category | Tempo Run Half Marathon Full Marathon Speed Training |
| Terrain | Asphalt |
| Midsole Technology | 鞋面工程網布 |
| Carbon Plate Structure | S 型尼龍板 |
| Upper Material | 工程網布 |
| Outsole Configuration | 橡膠外底 |
| Forefoot Thickness | 28.0mm |
| Heel Thickness | 36.0mm |
| Drop | 8mm |
| Weight | 233g |
| Fit | Snug |
| Breathability | (3/5) |
| Stability | Low |
| Cushion Distribution | Even |
| Feel Attribute | 高回彈 + 輕量 + 易駕馭 |
| Bounce | (4/5) |
| Running Style Recommendation | Neutral |
| Runner Level | Intermediate |
| Weight Range | Medium/Heavy |
| Width | Standard |
| Arch Type | Medium |
| Landing Type | Mid/Heel |
| Price | $124.00 USD (approx.) | Durability | 500 km | Overall Rating | 3.0 |
Saucony Endorphin Speed 4 被認為是「全能型速度鞋」。相比 Elite 2 的激進推進，它更柔和、耐用，適合日常速度課表與比賽兼用。尼龍板的設計讓它比碳板鞋更容易駕馭，跑者普遍覺得它是一雙「跑天下的好夥伴」：既能應付 tempo run，也能在半馬或全馬中追求好成績
適合：
Tempo run、間歇課表、速度訓練。
半馬、全馬比賽（追求速度但想要更易駕馭）。
想要一雙「訓練 + 比賽兼用」的跑者。
不太適合：
初跑者或只想慢跑的人。
需要額外足弓支撐或高穩定性的跑者。
想要極致推進力的跑者（Elite 2 更激進）。
