The RAW Trapp Kit has 6 Smell Blocking Layers!
1st Layer: Black 900D denier with polyurethane coated backing / 100% polyester
2nd Layer: Non-woven sheeting / 100% polypropylene
3rd Layer: 70% carbon foam with 30% polyester
4th Layer: Non-woven sheeting / 100% polypropylene
5th Layer: Solid barrier board
6th Layer: Black 210D denier with polyurethane coating backing / 100% polyester