MATMAN#36  THE NEW INNOVATIVE, HI-TECH ULTRA GUARD.  FEATURES 25% MORE CAVITY DEPTH WHICH HELPS PREVENT INJURY OR HELPS HEALING INJURIES.  3 1/2 TIMES BETTER HEARING WITH A NEW VENTING SYSTEM THAT RELIEVES COMPRESSION.  QUICKER ADJUSTABILITY PROVIDED BY THE WEBBING WHICH ADJUSTS ON BOTH ENDS.  AND LAST BUT NOT LEAST THE COMFORT OF NEOPRENE.