- Light and flexible cement construction - Fiberglass shank - Vibram® outsole - 8 Inches in height - Speed lace and hook hardware - Comfort Track footbed - Weight: 3.0 pounds per pair for a size 10 - 6mm oval laces for more secure lacing - Dual Density all Terrain Vibram Rubber Outsole - Breathable Tactical Grade Mesh Upper with High-Abrasion TPU Overlay & Matt Finish for Added Structure, Stability, & Durability