A razor sharp blade, an all-weather FireSteel® fire starter and a loud emergency whistle makes the SL3 a complete survival kit weighing only 78 g (2.7 oz). The blade has sufficient curve for most field chores and can be opened and closed with one hand. The 50/50 serrations add utility in both cutting and sawing and the strategic hole in the blade make lighting fires with the firesteel a simpler task