CLOUDBOOM STRIKE 2

The On Cloudboom Strike 2 is On's flagship marathon super shoe, rebuilt to push the limits of speed with an all-new CloudTec Sphere geometry and a lighter, more efficient PEBA foam. Featuring a redesigned curved carbon Speedboard plate, ultra-responsive Helion HF foam, and a refined engineered mesh upper, it delivers explosive energy return and a smooth, propulsive ride built for race day.

FEATURES

• All-new CloudTec Sphere geometry with segmented channels for freer foam compression and rebound
• Lighter Helion HF PEBA foam for maximized energy return over marathon distance
• Redesigned curved carbon fiber Speedboard plate for propulsion and stability
• Engineered mesh upper with added structure around the heel collar and Achilles padding
• Available in a standard build or the ultralight LightSpray version with a robot-built, one-piece upper
• LightSpray manufacturing process cuts carbon footprint by 65% with less waste

SPECS

• Best For: Marathon Racing, Road Racing, Tempo Workouts
• Surface: Roads & Track
• Support: Neutral
• Weight (Standard): 6.7 oz / 191 g
• Weight (LightSpray): 5.6 oz / 158 g
• Heel Stack: ~39.5 mm
• Forefoot Stack: ~34.5 mm
• Heel-to-Toe Drop: 5 mm
• Cushioning: Soft, Highly Responsive
• Upper: Engineered Mesh (Standard) / LightSpray One-Piece (LightSpray version)
• Midsole: Helion HF PEBA Foam
• Plate: Curved Carbon Fiber Speedboard
  

UNISEX SIZE CHART

This shoe is sized in men's sizing. Women should order 1.5 sizes up from their standard running shoe size (e.g., a women's 9 orders a men's/unisex size 7.5).

Perfect for serious marathoners and racers chasing a personal best, delivering On's most explosive, efficient super shoe ride yet.