I am planning on doing a fixed tour in South Australia. International flights allow for only two pieces of checked luggage and one carry on. My tour will last for one month.

My panniers will have to suffice for luggage. Any recommendations. My primary question, what materials best serve the harsh treatment they receive from baggage handlers. 2. How much stuff do you need to take on an international tour that might ultimately last for up to two months? My likely choice of panniers would be 2,441 cu. in. times two. Sufficient volume for a one month plus bike tour. Again it will be a fixed tour centering about one city

My likely choice of panniers will be made of a PVC coated polyester fabric. A good choice of materials that hold up well to being banged about in the hold of an airplane. ?