H4 Dial Technology. B.F.T. Vibram Approach. Gold level ASYM heat moldable liner. Inner shell harness w/ Liner Velcro. 3D molded Triple Density. 3D MOLDED LASTED TOE BOX. 3D MOLDED LASTED TONGUE. ARMOR TECH . ASYM3F. OC-KUSH. External Heel-lock. EXO-SPINE . SPACEBLANKET.