Protect your comics to museum-grade standards with these premium Mylar (polyester) comic bags, designed for long-term archival storage. Made form high-clarity polyester (Mylar), these bags are chemically inert, plasticiser-free, and pH neutral, ensuring your comics remain stable. Protected, and free from yellowing over time. With superior rigidity and clarity compared to standard poly bags, they are ideal for serious collectors and valuable comics. These bags are NOT resealable and are designed for use with a fold-over flap.