The Humidor Bag is a high-barrier laminated bag with a resealable zipper and Boveda inside. Imagine having a portable humidor that takes all the worry and guesswork out of properly maintaining your fine cigars. Boveda's patented 2-way humidity control has made this a reality. No matter where you store your Humidor Bag, the Boveda inside is responding to external conditions and will add or remove moisture as necessary to maintain 69% RH. Golf bag, glove box, boat, house or pocket, there will never be any mystery whether your cigars are ready when you are. Why is the Humidor Bag different from knock-offs? The Humidor Bag includes Boveda's patented 2-way humidity control - the same technology used in boxes of Arturo Fuente and other premium cigar brands. All 'competing' products on the market are one-way humidifiers. By nature, they can only emit moisture, whether it's needed or not, until the pillow, sponge or paper towel dries out. This causes spikes and fluctuations in humidity that severely effect the flavor of cigars. Only Boveda is guaranteed to regulate humidity without cycles or fluctuation to provide the perfect 69% RH your cigars crave.