Are Cookies Backpack Smell Proof?

This backpack comes built with smell proof technology and double zippered compartments to make sure any smelly dankness stays in the shadows while the translucent embroidered Cookies patch on front adds some subtle branded flair so you can still light up the room as you plug about your day while keeping your items ...

Are cookies bags smell proof?

5.0 out of 5 stars Super tough smell proof bag. Cookie Sf always makes great products. I particularly like this item because it is small, tough and smell proof. It is pretty small, just a bit bigger than my palm but it does have enough space for maybe a little over half an ounce.

How do I make my backpack smell proof?