Brooks Men's Ghost Amp Size:9.5 Performance brief liner: 94% polyester

Performance brief liner: 94% polyester

4 oz / 238 g

thumbholes keep sleeves in place

Reduces exhausting muscle vibrations to prevent cramping

provides energy return with each step

Brooks Men's Ghost Amp Size:9.5 Performance brief liner: 94% polyesterSpring loaded Miles Amplify your run in the Brooks Ghost Amp. The propulsive forefoot pop of the SpringRamp, combined with DNA HYPE PEBA blend cushioning, delivers a springy, responsive ride. All the technology works together in seamless harmony to deliver a fun, fluid ride that injects energy into every step. Features & Benefits: Amp up your run New SpringRamp forefoot technology helps you push off the ground with forefoot pop and momentum.