Rhea Footwear Womens Summer Sandals Flip Flops Slip Resistant Thong Two-Tone Color Comfort Double Strap Microfiber Imported Rubber sole Upper material: Microfiber Band: Double strap microfiber band to provide extra durability. The band base is also reinforced with a special fiber to prevent separation from the sole. Midsole: EVA hill pad with extra cushioning for comfort Outsole: Rheas patented worlds best slip-resistant outsole. Fits true-to-size. No break-in needed