Cyclone 2 Shoe Size:8.5 the Structure 25 supports you

the Structure 25 supports you for long miles

this trainer creates a lighter and softer cushioning experience

Ortholite® sockliner

Helps lift and stabilize the plantar fascia

With Altra’s signature FootShape™ fit

Cyclone 2 Shoe Size:8.5 the Structure 25 supports youDiscover our lightest and fastest shoe ever. The new upper features an airy mesh for excellent breathability, with a fit so light and secure it disappears around the foot as you move. The new full Pebax Powered performance midsole delivers a highly responsive, seriously lightweight, and energetic ride. The rocker design aids in a fast transition, while the lightweight die cut rubber outsole offers weight relief with optimal traction and durability.