Features: Ribbed flex front panel for maximum performance; Pressure bonded seams give maximum stretch & strength; Velcro cinch across instep & back keep boot snugly in place; Heel & toe support; Lightweight, flexible split toe boot; Xcel use limestone as the base component for all of their neoprene & glue. Powered by clean hydro-electricity, the waste heat generated by the limestone conversion processes is then re-purposed for aqua farming. Making excellent quality equipment while being environmentally conscious.