SylviDescription Another stretch comfort upper for that extra give. The sylvi is a pu upper, a flexible textured vamp, and a wide hook and loop strap that fastens over the instep for adjustability. Its dual density EVA outsole provides stability and sure footed walking all day! Upper Description The stretchable neoprene upper gives extra comfort with a D ring hook and loop adjustable strap for a snug fit Insole Description Structured Eva heel cup and arch