Slip ins: On The GO Flex Serene Size:US:5 This vegan laceless design has This vegan laceless design has been granted the APMA Seal of Acceptance and features a Stretch Fit® engineered knit upper with a removable Arch Fit® insole and a lightweight cushioned midsole This updated sneaker features a textile and Duraleather upper with an Air Cooled Memory Foam® insole for all day comfort This laceless style features a Stretch Fit® mesh upper with a Skechers Air Cooled Memory Foam® comfort insole and a lightweight ULTRA GO® cushioned midsole Step into stylish comfort with Skechers Hands Free Slip ins™: On the GO® Flex Serene