The shell concept is integrated into the midsole and upper mold, which were originally designed to provide cushioning and a supportive foothold. These sneakers feature a two-tone mesh construction, complemented by a glossy metallic pattern on the eyestay. The progressive tooling system incorporates FLYTEFOAM™ PROPEL cushioning to enhance comfort and provide an energised feel underfoot. flytefoam™ propel cushioning shell-inspired upper mold two-tone mesh construction