6mm Heat Shield interior liningUltra Stretch neoprene foot entryGlued and blindstitched constructionLQS Liquid seam system:100% sealed + durable seamsBio-tech layered panels: Anti-flush + anti-foot rollMaximum foot flex: Cut-out full-flex sole panelSplit toe design: performance surfing/feel + balanceSplit toe barrier: prevents leash snagDouble back adjustable arch strap for secure fitAdjustable upper ankle strapEase-On webbing heel tab