Advanced Tactical Helmet Black. Advanced Tactical Helmet. One Size fits all. Comes with Arc Rail, built in NVG Shroud, bungee attachment for NVG, 5 removable EVA cushion attachments, Dial liner chinstrap with side release buckle, Velcro Loop Patch: 2 Sides, 1 rear, and 3 extra EVA cushion inserts. For non-ballistic use.This is not a Pro-Tec model.