Made from Grivory, the latest in fiberglass reinforced plastic, and stronger than even the super tough Zytel. UV and heat stabilized, making it impervious to the elements. The handle material is deeply checkered Kraton, that has been molded directly to the blade tang. This knife is light enough to be tied, tucked, or taped just about anywhere on one's person. And, since they are a natural to hide both inside and outside your house.