Product Details The Groove is one of Ascen't best-selling arch support thongs. After sport and work, your feet need additional support. The EVA cushioning make it feel like you're walking on clouds underfoot and offload strain. FEATURES Dual-density contoured footbed Groove cutout to relieve pressure underfoot Super-soft EVA footbed Elevated heel to offload strain Lightweight design Arch support Cushioning EVA Footbed Benefit: Super soft, allowing the foot to relax. What is it: Very soft EVA foam. Where is it: Top layer of the sandal. Plantar Fascia Groove Benefit: Provides relief from plantar fascia strain. What is it: A groove carved into the firm base layer to allow the softer top layer to compress under pressure. Where is it: On the bottom of the shoe directly underneath the plantar fascia. Stability Contoured Orthotic Footbed Benefit: Helps to correct foot posture. What is it: Moulded EVA contoured in the shape of an orthotic. Where is it: Footbed directly under the full length of the foot in sandals. Cup Heel Benefit: Helps to align the foot. What is it: Wrap around the heel on an open toe sandal. Where is it: Heel of the footbed. Elevated Heel Benefit: Offloads the Achilles tendon What is it: Raised footbed from heel to toe. Where is it: Base layer of the sandal.