30% Recycled ABS, 70% ABS injection molded hard shell100% Recycled EPS foam liner100% Polyester open cell padded liningFidlock® magnetic strap buckle with one-handed operation100% Polyester removable padded ear padsAudio system compatibleAdjustable fit system dialGoggle strap holder100% Recycled PET webbing10 Passive ventsCE EN 1077:2007 Class B Certification