Gravity Defyer Men's G-Defy Extora II Athletic Shoes fabric-and-synthetic VS-2W VersoShock Reverse Trampoline Sole with 10mm of shock absorbing action Reactor Gel Technology & wide base for improved cornering and stability Extra-depth upper of easy to clean leather accommodates most orthotics Full heel cup and virtual shanking for increased mid-foot stability & control with wide toe box for forefoot comfort AVS3 ventilation system