100% Synthetic Imported Rubber sole Heel measures approximately 0.5" Earth-friendly recycled polyester webbing supports your foot and stands up to abuse while keeping plastic waste out of landfills Ladder lock enclosure for customized fit A lightweight EVA-foam midsole adds extra cushioning for maximum comfort, Nylon shank stabilizes and supports your foot on uneven terrai The contoured EVA midsole gives you arch support that most sandals lack Rugged Spider Rubber outsole, designed to work in wet conditions, is extremely durable and supplies great traction   O. Boxes, and APO addresses is not available for this item. That means that they have been opened due to being a photo sample, a tested good customer return or having damaged packaging. Some non-essential items may be missing from the box. The unit may not be shipped in retail packaging. That is the reason for the reduced sale price and the reduced warranty.