OPSAK Barrier bags 3-Pack: 12.5" x 20"

Barrier bags with gusseted bottoms!

ALOKSAK and O.P.SAK differences:
The difference in the bags is in the film. Both bags have the same closure.

The ALOKSAK is a very durable film and very difficult to puncture. It is a flat bag due to the thickness of the film. It is not odor proof.

The O.P.SAK is made of an odor barrier film. Unfortunately it is not as durable as the ALOKSAK. It is a bit stronger than your commercial resealable plastic bag but you need to use care when packing the O.P.SAK. It is also important not to over stuff the O.P.SAK thus abusing the film. Forcing the bag to close is not a good idea. Because the film is thinner we are able to use a gusset on the O.P.SAK. Again, you will compromise the seal, the gusset and the bag if you over stuff the bag and have to force it closed.

While most bear proof containers allow the bears to detect food but don't allow the bears to get into the containers, O.P.SAK actually keeps the bears from coming to the campsite at all. Keep both food and toiletries in an O.P.SAK and you can even leave them on the ground outside of your tent. Make sure not to contaminate the outside of the O.P.SAK with food odors.