Synthetic sole Fully waterproof with breathable lining for weather protection Molded nylon arch shank with protective rubber toe cap Bellows closed cell foam tongue keeps moisture and debris out 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.