The Endorphin Speed 4 is Saucony's premium fast and light hybrid with the ultimate blend of lightweight responsiveness, ideal for those who prefer a neutral daily trainer, faster workout days or race days of any distance.

• Best For: Speed Training / Race Day
  
• Cushioning: PWRRUN PB
  
• Sockliner: SRS 
• Offset: 8mm (36/28mm)
  
• Weight: Men 8.2oz (233g)
  
• Sustainability: This style is vegan and contains recycled materials

Features & Benefits:

• Speedroll technology featuring a nylon plate but modified for more rigidity and support in the midfoot. The nylon plate is more versatile to accommodate a greater range of speeds and paces.
  
• PWRRUN PB foam is a unique beaded formulation of a peba foam which is both more durable and consistent resulting in a responsive and bouncy feel mile after mile.
  
• Lattice inspired outsole design with XT-900 carbon rubber for lightweight durability without sacrificing traction.
  
• Zonally engineered mesh is both breathable and supportive.
  

Technology:

SRS

Super Responsive Sockliner provides exceptional comfort and performance. 

Wing Fluted TPU

Re-engineered Plate- Vertical reinforcement to add torsional rigidity, while maintaining flexibility through the forefoot.

8mm Offset

Heel-to-toe differential of the shoe, inclusive of the midsole and outsole measurements.

PWRRUN PB

Engineered with foam beads to combine cushioning and speed in a lightweight package.