Kokuyo Field Sketchbook – Trystrams, Blue (THF-KN06B)

The Kokuyo Field Sketchbook has been a staple of Japanese survey work since 1959, designed originally for engineers and field surveyors who needed a notebook they could write in while standing, one-handed, in any conditions. The Trystrams series is a premium colour release of the classic Field Sketchbook, offering a more limited, elevated palette alongside the standard range. Blue is the most immediately striking colour in the Trystrams lineup — a clean, saturated tone that sits confidently on a desk or in a bag without blending into the background. The fabric-on-paper cover gives it a soft, tactile finish while retaining the structural rigidity that makes it functional in the field. It has earned the 2015 Good Design Long Life Design Award, a recognition reserved for products that have remained essentially unchanged and continuously relevant across decades. The 3mm grid is printed in light blue — a traditional survey book ruling that guides writing and diagramming precisely without the visual weight of a darker grid. The high-grade neutral paper handles pencils, ballpoints, gel pens, and light fountain pen use comfortably with minimal bleed-through or feathering. Saddle-stitched and compact at 160 × 91 mm, it slips into a coat pocket, a field bag, or the front slot of almost any notebook cover. A note on the cover: colour transfer to other surfaces may occur due to friction — worth keeping in mind when carrying alongside lighter-coloured items. Features Fabric-on-paper hard cover in Blue — Trystrams premium colour series 3mm grid printed in light blue — traditional survey book ruling 40 sheets of high-grade neutral paper — 80 sheets of writing surface Saddle-stitch binding — opens fully flat Inner paper dimensions: 160 × 91 mm | Outer dimensions: 95 × 165 × 6 mm Compact enough for a coat pocket or field bag Winner of the 2015 Good Design Long Life Design Award Made in Japan See all Kokuyo items