Brooks Ghost Amp Running Shoes - Men's Primer/Ebony/Oyster 13. Features of Brooks Ghost Amp Running Shoes - Men's Feel an extra pep in your step with new nitrogen-infused DNA HYPE cushioning made with a combination of PEBA and EVA which blends softness and responsiveness so you can push your pace. Featuring the new SpringRamp forefoot technology designed to help you push off the ground with greater forefoot pop and momentum. The new lightweight warp knit spacer upper is breathable in all the areas you need to help control temperature plus extra comfort where you need it. This material is engineered with medial and lateral structure plus midfoot lockdown so your foot can feel secure when picking up speed and taking fast turns. Package Contents: Brooks Ghost Amp Running Shoes - Men's Brooks 1104971D054.130: Ghost Amp Running Shoes - Men's Primer/Ebony/Oyster 13