The BOXRAW Mask has been engineered for lifestyle and training use with 4-layer patent-pending innovation, featuring Micro-Fresh® technology to maintain airflow and combat the spread of bacteria. The unique anti-microbial spacer and adjustable single-strap prevent face and ear irritation that comes with traditional facemasks.*Please note for hygiene reasons we cannot accept returns on this product.Layer 1: Anti-microbial shell fabric (88% Nylon, 12% Polyester)Layer 2: Meltblown filtration layer (98% Polypropylene, 1% Polyurethane, 1% Polylactic Acid)Layer 3: Activated carbon filter (50% Activated Carbon, 50% Non-Woven Fabric)Layer 4: Anti-microbial spacer mesh (100% Polyester)Micro-Fresh® technologyIncreased airflowAdjustable elastic buckleComfortable custom nose wireMachine washable