HEAD IRON LOOSE SUB70 799 SATIN 816014 #5IThe newest addition to the Sub70 game improvement family, the 799 iron, is the most forgiving iron we have ever designed. For the player seeking straighter, higher ball flights, the 799 is a literal game changer. The 799 utilizes hollow body technology with the same ultra thin 1. 7mm, 455 Carpenter Steel face as our award winning 699 iron. The head is then injected with TPE resin for improved feel, increased energy transfer, and ball speeds.