The Modestone notebook developed for field use is resistant to water, dirt, grease, rubbing, folding, does not tear easily and is not eaten by insects. You can write in the notebook with a lead or ballpoint pen in the usual way.

Modestone Field Book Green 118x183 128 pages squared B23

inside cover includes a metric ruler, knot instructions, and conversion chart between the well-crafted metric system and the obsolete imperial nonsense based on the diameter of some medieval warchief's big toe and nose.
Under the back cover are morse codes and a 1:50k map ruler

Dimensions: 118 x 183mm
Pages: 128 (64 sheets)
Paper: 144gsm
Square: 7 x 7mm
Weight: 218 g

Current users of Modestone Any Weather Paper include police and all law enforcement sectors, fire and rescue, customs, border control, defense forces, search and rescue.