Runrun 672 Jeans Pen Case vs 565 Paper Pen Case: Two Stylish New Picks Compared

Introduction

Runrun, a stationery brand from Japanese maker Fabric Public, recently added two new pen cases to its lineup: the 672 Jeans Pen Case and the 565 Paper Pen Case. Both launched in October 2024, and both follow the same core philosophy that defines the brand: generous padding, reinforced edges, and a structure designed to protect your pens rather than just hold them.

The 672 comes in denim fabric at a tax-included price of 2,190 yen, while the 565 uses a paper-like material at 1,790 yen. After spending time with both, here is how they compare.

Runrun 672 Jeans Pen Case

The 672 is a denim pen case available in two colors: Indigo Blue and Vintage Blue. The Vintage Blue option is a particularly nice touch, since it is not simply the same fabric in a different shade but a genuinely different tone with real character.

What surprised me most is that even though denim pen cases from other brands have never appealed to me, Runrun’s version is genuinely attractive. The clean base design and simplicity work well, and the combination of denim, red stitching, and the asymmetric brown brand label immediately evokes jeans in the best way. The fabric itself feels soft yet durable, with the characteristic suppleness you expect from denim.

One thing worth knowing about the series: the base design existed in Korea before Runrun began selling it in Japan in 2019, so it has a longer history than its recent release date suggests.

Build Quality and Protection

Runrun pen cases are famously resistant to losing their shape, and the 672 is no exception. The edges and rounded corners use a plastic piping core, which is common in this category, but Runrun layers tough nylon fabric over it and reinforces the case from the inside as well. This double-layer structure makes the whole case noticeably sturdier.

The entire case has a thick, cushioned feel wherever you touch it. It clearly communicates the maker’s intent: this is not just a storage item, it is designed to protect your stationery. The resin coil zipper runs smoothly, and the two metal zipper pulls with a matte silver finish and brand logo make relatively little rattle when the case is moved, partly because the denim fabric dampens the sound. The fabric around the zipper is also folded wide and reinforced, which helps prevent fraying.

Interior Layout

Inside, kraft paper is inserted to hold the shape during shipping. The interior is lined with nylon. The left side is a full-height mesh pocket for pens and rulers, while the right side has two tiers: four elastic pen holders plus one wider elastic band suited to a stapler or similar items. The base of the holders uses PVC, so they do not bend or collapse, making pens easy to insert. The first-tier space includes a spot sized for an eraser alongside a free area, and there is plenty of room for markers.

Runrun 565 Paper Pen Case

The 565 brings the paper-style pen case to the 5 series, which is more compact than the 6 series. It features a distinctive arched curve design and comes in four colors: Black, Gray, Brown, and White. The Brown version is the standout, with a texture like crumpled craft paper that looks genuinely stylish. The material feels moist and soft, almost like leather, and the Runrun logo is embossed on the surface.

Like the 672, it uses plastic piping for structural strength, and the interior edges also have piping running through them, so it is just as rigid as its bigger sibling.

A Patent-Designed Zipper Pull

One of my favorite details is the zipper pull, which uses an original design shaped like overlapping loops, representing the overlapping characters of the brand name. It is a patented design, engraved with the logo, finished in matte silver metal, and it is genuinely comfortable to grip.

Interior Layout and Everyday Use

The interior is nylon-lined, and kraft paper keeps the shape during shipping. The upper tier holds three elastic pen holders plus a stretchy band suitable for a stapler case. Like the 672, the pen holders use PVC inside so they stay upright and firm. Notably, the 5 series holders sit lower and angled differently than the 6 series, which means pens do not interfere with the zipper when you insert them, a genuinely thoughtful detail.

A mesh pocket along the side fits longer stationery, and the center bottom is designed with eraser storage in mind. One clever habit-based feature: when you open the zipper and lay the case on its side, it stays open on its own, so you can see the contents at a glance and drop pens straight back in after use.

Which One Should You Buy?

The 672’s strengths are its looks, texture, sturdy protective build, practical large capacity, and strong value. The only real wish is for more colors, since two is a fairly limited range. It suits anyone who wants room to separate a bigger collection of pens and tools, and the Vintage Blue finish in particular has a lot of appeal.

The 565 also scores on looks, texture, practicality, and value, with the added bonus of an excellent patented zipper pull and a richer four-color lineup. The one improvement I would suggest is the mesh pocket: since it is one long pocket, smaller items can be hard to fish out. Splitting it into two sections would make organizing small accessories easier.

Conclusion

Both pen cases are stylish and practical, and both share what makes Runrun products distinctive: thick, shape-retaining construction that actually protects your stationery. The 672 wins on capacity and has a denim feel good enough to convert skeptics of denim pen cases, while the 565 offers a more compact footprint, a lovelier color range, and that clever always-open design. Either one is easy to recommend, and both are worth a look if you want a pen case that keeps your favorite pens safe.