ASICS Womens GEL KAYANO 31 Running Shoes CORE LIGHTING Want to use the Caddy VANGUARD NOAA PHS Want to use the Caddy as one unit C9 12 Alkane Engineered stretch knit upper improves breathabilityExternal back heel counter helps keep the foot stable and provide a more comfortable stride4D GUIDANCE SYSTEM featureHelps create adaptive stability for a more balanced strideRearfoot PureGEL technologyHelps provide lightweight cushioning and softer landingsFF BLAST PLUS ECO cushioning is made with approximatley 20% bio based content and helps provide cloud like comfortOrthoLite X 55 socklinerImproves comfortReflective detailsDesigned to help improve visibilityAHARPLUS heel plugImproves the outsole durability It's 65% softer than conventional visible GEL technology