Are you over 21?
Waterproof & Airtight Seal: The primary feature is a tight seal—often a screw-on cap with rubber stoppers or a specialized, high-quality "squeeze-to-open" pop-top—that prevents water and moisture from entering.
Smell-Proof: The air-tight construction keeps odors securely contained, offering high levels of discretion.
Durability: Typically constructed from rigid, high-quality polycarbonate plastic (which can be stronger than steel) or aircraft-grade aluminum, ensuring they won't bend or break in pockets or bags.
