Saucony Endorphin Speed 4 Shoes: Speed and Performance. Discover the Saucony Endorphin Speed 4, hybrid shoes designed to maximize your speed in daily training, fast sessions, or competitions. With a combination of reactive cushioning and a versatile nylon plate, these shoes offer you lightness, responsiveness, and durability for any distance. Surface: Asphalt. Shoe type: Neutral. Usage: Speed training / Competition. Weight: 206 g. Drop: 8 mm. Plate: Nylon, modified design for greater versatility and support. Midsole height: 36 mm (heel) / 28 mm (toe). Cushioning: PWRRUN PB.