Same as strapless with quick-release helmet tether. Patented semi-rigid Shock Transfer Core design provides the ultimate protection, fit and lower jaw stability in a compact size for easier breathing and speaking. A lateral jaw stabilizer protects the lower jaw from side impacts. The semi-rigid inner core is covered by a soft moldable outer layer for easy and precise molding for a super tight fit and air cushioned shock pads help protect the jaw, jaw joints and brain.