Genuine direct fit Air-Tite coin holders are made in the USA of clear Acrylic plastic. They are the top of the line coin capsule and % archival safe. Direct Fit Air-Tite coin holders are formed from injection molding with a clear acrylic that is PVC free. Each and every Air-Tite contains a non. Air-tite coin capsule holders provide maximum protection for your coin collection. Half Dollar Direct Fit Air-Tite Coin Capsule mm.