This form fitting hard plastic case is designed to be as low profile and discreet as possible for the Pax 2 or Pax 3 (not Pax 1 original) while protecting your Pax from scratches and other damage. This case has a secure latch-top lid that you can flip open which snaps tightly upon closure for an air tight seal. Remember the baking soda & vinegar volcanic eruption experiment from grade school? This case withstands the backing soda vinegar pressure test—it will not erupt like a volcano if you put a mixture of baking soda and vinegar inside and shut the lid. This is an indicator of a very tight seal that makes the case air-tight, water-resistant, smell and odor proof. Case will fit into traditional mens’ pant pockets easily (not skinny jeans—does anything fit into skinny jeans?). A small piece of foam is set into the bottom of the case to keep the device from rattling as you walk. Your Pax will fit securely with the raised or flat mouthpiece. The product is strong enough to withstand hard drops and protect your device. (Dents in the case may occur, but the device will remain protected). In addition, there is a small loop on the side of the case allowing you to attach it to backpacks, handbags and other gear.