Aluminum handle slabs. Stainless steel frame. Double Lock (securely locks blade, spike or both). Includes Ballistic nylon sheath. 440 C stainless steel 3/4 Serrated blade, 1/4 Traditional blade. One hand open, tether loop, belt/swim trunks clip, fully functional pliers for opening shackles, etc. This unique design represents the result of years of testing in the field. All the tools that a sailor depends on...and needs.