S.A.F.E. System I Scout Hollow Handle Survival KnifeKnife comes standard with the Basic Duty kydex sheath, to which you can attach your own means of carry (TekLok, etc.). To add our belt loop adapter and hand crafted leather belt loop, CLICK HERE. You can choose from two different cord wrap colors, "Rambo Green" and Black. The S. A. F. E. System I or SS1 (Survival Adventure Field and Exploration) knife is designed to be a truly useful and functional hollow handle survival knife. Based on a design by