They must be housed in a suitable, secure, leak-proof, ventilated enclosure.
Place the frozen meat in a leak-proof bag or package so it won't absorb sink water.
This seal does not stick to your face and applies gentle pressure making the goggles extremely comfortable to wear as well as leak-proof.
One of the advantages of them being leak-proof is that you can use these covers for your sleeping bag and stay dry even when you don't have a tent to cover you.
Fabric Weight and Quality - If you plan to use your tent frequently or if you may camp out in rainy weather conditions, be sure to select a tent created from heavy duty waterproof fabric that is designed to be leak proof.