Constructed from Yupo Synthetic paper and housed within a nigh-on indestructible cover that boasts a map of Antarctica, the Field Notes Expedition Notebook is waterproof, tearproof and acid resistant, just the ticket for any exploration endeavors. If you are planning on a trek into the middle of nowhere we recommend you carry a cheapo notebook also, just in case you do find yourself stuck and in desperate need of kindling as this paper is even flame resistant too.