Waterproof Shell Color: Olive and Black Material: Rugged TPU, Strong Elastic Fits: On-the-Go Notebooks, the Portage Pen, 6 slots for credit cards Tough Elastic Secures Contents in Place General purpose, all-weather notebooks and notepads feature horizontal-lined or metric grid pages. They resist water, sweat, grease, and mud in construction and utilities applications, or agricultural and forestry environments.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }