Best place to buy mylar bags? Dragon Chewer! Our wholesale bulk mylar style barrier bags come in a huge variety of colors and sizes. We have pre roll, gram, 3.5g, quarter ounce, half ounce, 1 ounce and even 1 pound mylar packaging bags. Our 4 MIL bags are thick and smell proof, just like the 7 MIL. Caviar Locker mylar bags are the best around. Shop with confidence.