Rite In The Rain Field Flex Bound - Universal Yellow 4 5/8 X 7 1/4. The Rite in the Rain Field Flex Notebooks stow easily and feature a soft Field-Flex cover that will bend to conform to all kinds of pockets. Choose from a variety of sizes to suit your note-taking needs. These portable waterproof bound books are great for making notes and recording data no matter where your travels or work takes you Specifications for Rite in the Rain Field Flex Book: Binding: Perfect Cover: Field Flex (yellow) Package Contents: Rite in the Rain Field Flex Book Rite In The Rain 374: Field Flex Bound - Universal Yellow 4 5/8 X 7 1/4. Mid-sized Field-Flex book comes with 128 pages (64 sheets) printed on 32 Rite in the Rain paper.