The Breathable Suit 66-667 Series is NFPA 1990 (NFPA 1992) certified, offers exceptional comfort and durability, and is liquid-chemical splash resistant. Chemical splash cloth offers defense with data on more than 70 chemicals’ levels of penetration. Fabric that is breathable maximizes comfort, lowers the chance of heat exhaustion, and boosts productivity. Heavy durable zipper and adjustable straps with parachute-style buckles. Leg and cuff hook-and-loop fastenings, a sturdy laminated fabric system that is machine washable for a longer, cost-effective service life.