QUALITY: Sheepsfoot style blade made of CPM-MagnaCut steel with partial serrations for cutting lines, ropes, and bait, the Undercurrent is a cinch to clean. COMFORT : A composite of vulcanized EPDM rubber and thermoplastic, this durable, molded material provides a sure grip in all conditions. YOURS, FOR LIFE: Benchmade will re-sharpen your knife to a factory edge for free, for the life of the knife. Benchmade LifeSharp services includes cleaning, oiling, adjustments, and re-sharpening.