Kit includes: N-Ferno® 6867 3-layer winter hard hat liner and N-Ferno® 6874 detachable thermal neoprene mouthpiece
3-Layer thermal liner: 100% quilted polyester outer shell + foam insulation mid-layer + 100% polyester fleece lining
2-Layer thermal mouthpiece: breathable 1mm neoprene outer shell + soft fleece lining