The Skechers GOrun Razor+ is a versatile, lightweight fast trainer and race day shoe. Featuring a minimal mono mesh and polyester upper plus highly-resilient HYPER BURST cushioning with a durable Goodyear Performance Outsole.HYPER BURST cushioning midsole offers a highly responsive and ultra-lightweight running experience. This innovative resilient foam is created using a 'Super Critical' process.Goodyear Performance Outsole delivers enhanced traction, stability and durabilitySkechers M-Strike technology promotes efficiency in each stride. This midsole configuration creates smooth transitions from landing to toe-off- Textile / synthetic upper- Hyper Burst responsive cushioning- Goodyear Performance outsole- Skechers branding