Content 65% pre-consumer recycled polyester 35% post-consumer recycled polyester Backing none; Treatment none; Cleaning Code: Standard Care Label W-S. Clean with water based cleaning agents, foam or pure, water free solvents. Vacuuming or light brushing is recommended to prevent dust and soil buildup. May also be disinfected with hydrogen peroxide, alcohol, and quaternary ammonium (quat) based cleaners. Pilling resistance (ASTM D3511)Class 4 min. Colorfastness to light (AATCC 16.3 Option 3) Grade 4 min. at 40 hours; Colorfastness to crocking (AATCC 8) Grade 4 min. dry & Grade 3 min. wet; Wyzenbeek Abrasion resistance (ASTM D4157) 250,000 double rubs min. cotton duck; Flammability CA Technical Bulletin 117-2013 Section 1 NFPA 260/UFAC Fabric Classification - Class I ASTM E84 Class I or A