For its PERPANEP line (an anagram of "pen" and "paper"), Kokuyo has optimized the compatibility between different paper textures and pen types to offer 3 different pairings:
- Smooth (Sara Sara) [75 gsm] - Designed for use with water-based gel pens, like the Kokuyo x Zebra SARASA Clip PERPANEP - 0.5mm. Also works with oil-based ballpoint pens and pencils.
- Textured (Zara Zara) [90 gsm] - Designed for use with fountain pens, like the Kokuyo x Platinum Preppy PERPANEP - 0.3mm. Also works with plastic-tipped fineliners.
- Ultra-Smooth (Tsuru Tsuru) [96 gsm] - Designed for use with plastic-tipped fineliners, like the Kokuyo PERPANEP Finewriter - 0.35mm. Also works with felt-tipped pens and fountain pens.
The Textured (Zara) paper is toothy and absorbent for those who enjoy feeling and hearing the feedback of your pen from the page. Weighing in at 90 grams per square meter (gsm), it is a medium-weight paper that is thick enough to hold up under a fountain pen nib but also lighter than you would expect. Kokuyo recommends pairing it with their collaboration fountain pen with Platinum, the Kokuyo x Platinum Preppy PERPANEP - 0.3mm.
This paper texture is available in 5 page styles: 3mm Grid, 4mm Grid, 5mm Grid, 4mm Dot Grid, and 6mm Steno Ruled. The gray cover is made out of eco-friendly recycled pulp, the pages are made out of forest-certified paper, and the cheesecloth binding allows the pages to lay completely flat when the notebook is open on a table. Because the notebook lays flat, the gutter of the notebook is minimally intrusive so that it doesn't interrupt your writing experience, especially if you enjoy writing or drawing spreads.
- 60 pages
- A5 (148 x 210 mm)