FGX Karambit by Cold Steel Knives 92FK  Cold Steel's Nightshade Series features lightweight all black knives constructed of Grivory, the latest in fiberglass reinforced plastic. Stronger than even the super tough Zytel material, the knives are UV and heat stabilized, making them impervious to the elements. The handles are made from deeply checkered Kraton, molded directly to the blade tangs.