Fallkniven S1 Thermorun Handle Plain Leather Sheath FK. This Knife from the product specialists at Fallkniven features a 5.1 in. laminated VG10 steel blade thermorun handle and includes a high quality leather sheath. For a great way to make sure you are working with the blade for all of your needs make sure you check out the Fallkniven S1 Thermorun Handle w/ Leather Sheath. Specifications for Fallkniven S1 Thermorun Handle w/ Leather Sheath: Manufacturer: Fallkniven Serrated: Plain Included Accessories: Leather Sheath Blade Finish: Steel Handle Color: Black Handle Finish: Thermorun Quantity: 1 Features of Fallkniven S1 Thermorun Handle : 5.1 in. laminated VG10 steel blade thermoruhandle Package Contents: Fallkniven S1 Thermorun Handle w/ Leather Sheath Fallkniven FK-S1L: S1 Thermorun Handle Plain Leather Sheath