--- title: "KOKUYO Systemic Notebook Cover: A5 Size & Pockets" canonical: "https://stationerytimes.com/guides/kokuyo-systemic-notebook-cover/" description: "KOKUYO Systemic A5 cover explained: a 232 × 175 mm water-repellent cover that holds two notebooks, its deep pockets, refill notebook, colors, price and origin." category: "Systems" type: "Notebook cover" published: 2026-10-22 updated: 2026-10-22 author: "Ellis Penhale" publisher: "Stationery Times" sources: 6 products: - name: "KOKUYO Systemic two-notebook cover, ring-notebook type, synthetic leather, A5, Navy (NO-V685B-DB)" brand: "KOKUYO" brand_origin: "Japan" made_in: "China" material: "Polyester and synthetic leather cover; twin-ring notebook with woodfree paper" price_band: "$$$ ($20–75 for the cover or binder with its starter insert, typical US retail, October 2026)" manufacturer: "KOKUYO Co., Ltd." model: "NO-V685B-DB" mpn: "NO-V685B-DB" gtin: "4901480308586" url: "https://www.kokuyo.com/stationery/category/notebook-paper/notebook-with-cover/9820/" --- # KOKUYO Systemic Notebook Cover: A5 Size & Pockets > The KOKUYO Systemic is a water-repellent cover that holds two A5 notebooks at once, one in each deep inner pocket. KOKUYO lists the synthetic-leather version (ノ-V685B) at 232 × 175 mm (9.1 × 6.9 in), sold with a 50-sheet twin-ring A5 notebook, three bookmark ribbons and pockets for pens and cards. - URL: https://stationerytimes.com/guides/kokuyo-systemic-notebook-cover/ - Category: Systems - Author: Ellis Penhale - Published: 2026-10-22 - Updated: 2026-10-22 ![Navy KOKUYO Systemic A5 notebook cover drawn to scale, 232 mm tall, closed with an elastic band and opened flat holding two A5 notebooks](https://stationerytimes.com/images/raster/kokuyo-systemic-notebook-cover-16x9.png) *The Systemic A5 cover, closed and open, drawn to scale from KOKUYO's figures (1 mm = 0.85 px).* Original drawing (SVG): . Drawings © 2026 Stationery Times, reusable with credit under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). ## Product facts | Product | Brand | Brand origin | Made in | Material | Released | Price range (typical US retail, October 2026) | |---|---|---|---|---|---|---| | KOKUYO Systemic two-notebook cover, ring-notebook type, synthetic leather, A5, Navy (NO-V685B-DB) | KOKUYO (by KOKUYO Co., Ltd.) | Japan | China | Polyester and synthetic leather cover; twin-ring notebook with woodfree paper | – | $$$: $20–75 for the cover or binder with its starter insert | - Made in (KOKUYO Systemic two-notebook cover, ring-notebook type, synthetic leather, A5, Navy (NO-V685B-DB)): China. KOKUYO's official global online store lists the country of origin of the A5 Systemic cover (NO-V685B-DB) as China. KOKUYO's Japanese product page doesn't state it. Source: https://kokuyostore.com/en_US/top_sellers/systemic-note-cover-a5-size-navy/NO-V685B-DB.html ### KOKUYO Systemic two-notebook cover, ring-notebook type, synthetic leather, A5, Navy (NO-V685B-DB) colors - Body colors (4 standard, 0 special edition): Black (黒 (D)); Navy (紺 (DB)); Gray (グレー (M)); Brown (茶 (S), listed on KOKUYO's Japanese page). - Per KOKUYO Global Online Store (https://www.kokuyostore.com/en_US/stationery/stationery-organizer/systemic-note-cover-a5-size-navy/NO-V685B-DB.html), checked 2026-10-27. KOKUYO's global store color selector lists Gray, Black and Navy for the A5 Systemic cover (tints are the hex of its color chips, not measured). KOKUYO's Japanese page also gives a fourth cover color, brown (茶, suffix S), which has no chip we could read, so it carries no tint. Japanese names: 黒 D, 紺 DB, グレー M, 茶 S. Shops stock different colors; check the listing. ## Key takeaways - KOKUYO lists the A5 cover at 232 × 175 mm (9.1 × 6.9 in), for notebooks of 210 × 148 mm. - It ships with a twin-ring A5 notebook of 50 sheets, 28 lines, refill code ス-TJ105B. - KOKUYO's list price for the synthetic-leather ノ-V685B is ¥3,200 (about US$20) before tax; the polyester ノ-685B is ¥2,950 (about US$19). - Its Amazon US listing had about 2,600 ratings averaging 4.8 stars on October 22, 2026. - KOKUYO's global store lists China as the country of origin. ## What is the KOKUYO Systemic notebook cover? **It's a cover that carries two A5 notebooks at once, so you can keep, for example, a work notebook and a diary together.** KOKUYO, the Osaka maker of [Campus notebooks](https://stationerytimes.com/guides/kokuyo-campus-notebook/), sells it in Japan as a "2-book" cover notebook (2冊収容) and pitches it as a way to manage notes and a schedule book as one set. Systemic comes in several types; this guide covers the A5 ring-notebook type in synthetic leather, ノ-V685B. It's a long-running import favorite in the US: its navy Amazon listing had about 2,600 ratings averaging 4.8 stars on October 22, 2026. ## KOKUYO Systemic A5 specs | Spec | Value | |---|---| | Maker | KOKUYO Co., Ltd. (Japan) | | Model | ノ-V685B (NO-V685B), color suffix D, DB, M or S | | Cover size | 232 × 175 mm (9.1 × 6.9 in) | | Notebook size | A5, 210 × 148 mm (8.3 × 5.8 in) | | Included notebook | Twin-ring, 50 sheets, 28 lines, edge-title ruling | | Refill | ス-TJ105B | | Cover material | Polyester and synthetic leather, water repellent | | Extras | 3 bookmark ribbons; pen pocket; card pocket | | Japanese list price | ¥3,200 (about US$20) before tax | | JAN, navy | 4901480308586 | | Made in | China (KOKUYO's global store) | KOKUYO's global store listed it at US$47.10 on October 22, 2026, and Amazon US for much less, so we place it in the $$$ band ($20–75). KOKUYO doesn't publish a weight or a thickness. ![KOKUYO Systemic A5 cover, 232 × 175 mm, drawn to scale with an A5 notebook inside and two notebooks when open](https://stationerytimes.com/images/kokuyo-systemic-notebook-cover-sizes.svg) *KOKUYO's cover and notebook sizes at 0.95 px = 1 mm; pocket heights drawn by eye.* ## How does the two-notebook system work? **Each half of the cover has a deep inner pocket that grips one notebook's front cover, so two notebooks sit side by side.** KOKUYO says the pockets are deeper than on its earlier covers, so a single side of a notebook cover is enough to hold it firmly. The right pocket is made for a ring notebook: KOKUYO says it keeps the ring notebook's best trick, folding back on itself, so you can write in a small space. The left pocket suits a bound notebook, a diary or a memo pad. ## What fits in the KOKUYO Systemic A5? **Any A5 notebook, plus thick notebooks, ring notebooks and memo pads, according to KOKUYO.** The Amazon listing puts the total capacity at up to about 1 inch (25 mm), roughly two 100-page notebooks. The cover's outer pocket holds pens and sticky notes, and the inner pockets take loose papers and business cards. The Amazon listing also describes an elastic closure and a pen loop. | Fits well | Check first | |---|---| | KOKUYO twin-ring A5 refills (ス-TJ105B) | Two thick hardcover notebooks (about 1 in in all) | | [KOKUYO Soft Ring](https://stationerytimes.com/guides/kokuyo-soft-ring-notebook/) A5 notebooks | Notebooks larger than A5, such as B5 | | A5 diaries and memo pads | Two thick notebooks at once | ## Which Systemic version should you buy? **Choose the synthetic-leather ノ-V685B for a dressier cover, or the polyester ノ-685B to save a little.** KOKUYO lists the polyester ノ-685B at ¥2,950 (about US$19) before tax, with two ribbons instead of three. Both come in A5 with a 50-sheet notebook and in B5 with a 40-sheet notebook. If you'd rather have a single cover for a single small book, see the [Hobonichi Colors cover](https://stationerytimes.com/guides/hobonichi-techo-colors-cover/); for a binder you can refill page by page, see the [KOKUYO Smart Ring](https://stationerytimes.com/guides/kokuyo-campus-smart-ring-binder/). ## What are the downsides? **It's synthetic leather, not leather, and it's sized for A5 only.** The synthetic-leather surface is water repellent but not waterproof, and KOKUYO's own list price is much lower than some US import prices, so shop around. ## Where is the KOKUYO Systemic made? **In China, according to KOKUYO's official global online store.** KOKUYO itself is a Japanese company based in Osaka, but its Japanese product page doesn't state the country of manufacture. For how Systemic compares with leather traveler's covers and ring binders, see our [notebook systems comparison](https://stationerytimes.com/guides/notebook-systems-compared/). ## Frequently asked questions ### What size notebook fits the KOKUYO Systemic A5 cover? A5 notebooks, 210 × 148 mm (8.3 × 5.8 in). KOKUYO says ring notebooks, thick notebooks and memo pads fit too, and the Amazon listing gives up to about 1 inch of total thickness. ### Can the KOKUYO Systemic hold two notebooks? Yes, that's the point of it. Each half has a deep inner pocket that grips one notebook's front cover, so you can carry, say, a notebook and a diary together. ### What refill does the Systemic A5 use? It comes with KOKUYO's twin-ring A5 edge-title notebook ス-TJ105B, 50 sheets with 28 lines. Any A5 notebook that fits the pocket works as well. ### Can you fold a ring notebook back inside the Systemic? Yes. KOKUYO says that with a ring notebook in the right pocket, you can fold it back and use it compactly, just as you would without the cover. ### Is the KOKUYO Systemic cover waterproof? It's water repellent, not waterproof. KOKUYO says the cover material is durable with a water-repellent finish. ### What colors does the Systemic A5 come in? KOKUYO's Japanese page lists black (D), navy (DB), gray (M) and brown (S) for the synthetic-leather ノ-V685B; its global store lists black, navy and gray. ### Is there a B5 KOKUYO Systemic? Yes. KOKUYO lists B5 versions of the ring-notebook-type cover, sold with a 40-sheet B5 notebook. ### Is the KOKUYO Systemic made in Japan? No. KOKUYO's global online store lists China as the country of origin for the A5 Systemic cover, although KOKUYO is a Japanese company based in Osaka. ## Sources - [コクヨ: システミック ２冊収容,リングノートタイプ合皮カバーノート A5 紺 (ノ-V685B-DB; ¥3,200 before tax; cover 232・175 mm; notebook 210・148 mm; 50 sheets, 28 lines; refill ス-TJ105B; JAN 4901480308586; colors D, DB, M, S; read October 22, 2026)](https://www.kokuyo.com/stationery/category/notebook-paper/notebook-with-cover/9820/) - [コクヨ: システミック ２冊収容,リングノートタイプカバーノート A5 黒 (polyester ノ-685B-D; ¥2,950 before tax; two bookmark ribbons; JAN 4901480259550)](https://www.kokuyo.com/stationery/category/notebook-paper/notebook-with-cover/13903/) - [KOKUYO official global online store: SYSTEMIC Note Cover A5 Size Navy (NO-V685B-DB; 232 × 175 mm; country of origin China; read October 22, 2026)](https://kokuyostore.com/en_US/top_sellers/systemic-note-cover-a5-size-navy/NO-V685B-DB.html) - [Amazon: KOKUYO Systemic Synthetic Leather Cover Notebook, A5, Navy (NO-V685B-DB; elastic closure, pen loop, three bookmarks, up to 1 in total thickness; about 2,600 ratings; read October 22, 2026)](https://www.amazon.com/dp/B00S0GQS5C) - [Amazon: KOKUYO Systemic Cover Notebook, Semi-B5, Black (NO-683B-D; B5 twin-ring notebook ス-TJ4B)](https://www.amazon.com/dp/B0049KEEHM) - [KOKUYO Global Online Store: SYSTEMIC Note Cover A5 Size Navy (color selector: Gray, Black, Navy)](https://www.kokuyostore.com/en_US/stationery/stationery-organizer/systemic-note-cover-a5-size-navy/NO-V685B-DB.html)