Features: Soft flexible Nubuck leather upper. Hook and loop closure system for quick adjustability. Lycra neoprene lining for padded comfort treated with Aegis antimicrobial solution. External TPU heel stability arm Compression molded EVA footframe for stability and comfort. Merrell air cushion in the heel absorbs shock and adds stability. Vibram Chameleon Sport Sandal Sole/TC5+ Rubber. This is a top quality product, it really doesn`t get any better than this.