Patented Skechers Arch Fit insole system with podiatrist-certified arch support Podiatrist-designed shape developed with 20 years of data and 120,000 unweighted foot scans and 120,000 unweighted foot scans Removable insole helps mold to your foot to reduce shock and increase weight dispersion Memory Foam Lux topped insole Stretch Fit slip-on design for sock-like comfort Design Details Soft knit jersey upper Slip-on sporty fashion sneaker with stretch laces Shock-absorbing midsole with a geo sculpted detail Flexible rubber traction outsole Machine washable 1 1/2-inch heel Mark Nason logo detail