Rite In The Rain Tactical Ring Universal Binder Kit is ready to go for planning and taking notes in the field environment. The Cordura cover is water resistant and hold the heavy duty rigid plastic binder cover inside with the internal sleeves. The cover has a heavy duty zipper to secure contents and there are organization slots for items such as pens. A black Rite in the Rain clicker pen is included, for writing things in the rain. Kit Includes: Rite in the Rain paper and reference cards, which can be wrote on in the rain. Maybe not heavy rain but a sprinkle to moderate rain is good to go.