New Bogu Bag

So I finally got tired of fixing my last non-kendo bogu bag (see, and after a few months of searching I purchased this bad boy from Thule.

The Thule Subterra 25 inch/63 cm Spinner combines a soft front and reinforced sides and a textured skid plate in a stable vertical platform. It has an extendable handle on the rear of the bag and has two locking positions. While most handles have a release button on the top, the Subterra has two buttons on the side to prevent accidental release. You can press either button to release the handles. Two reinforced ballistic nylon handles on the top and on one side of the bag opposite the zippered opening. All zippers have reinforced eyelets. The front wheels are smaller so that they do not encroach on the internal cargo space. There is a mesh pocket for a business card to be used as ID. Comes in black, blue and burgundy.

The svelte Subterra has outer dimensions of 12.5 x 17.3 x 25.0 inches (31.75 x 43.9 x 63.5 cm) and is quite compact compared to my last bag, Planet Eclipse GX Split ‘Compact’ gear bag which was quite bulky (35 x 40 x 65 cm). I don’t know anything about capacity but the Subterra is 63L and the Split was 91L. The Subterra can also expand two inches via zipper extension. The main compartment can fit my XL E-bogu do and men (10.5 x 16.5 x 19 inches, self measured). I put the hakama and gi in the bottom zippered compartment and the tenugui and other stuff (contacts, tools, first aid kit, tasuki, probably shinpanki too) in the top compartment which can be accessed from the inside of the bag and also from the top of the bag.

It’s pretty light since it’s not a hardside and should be easy to wipe down both inside and out.

The bag is pretty stable upright and I have not had it tip over yet.

When full, there is a little bit of resistance on one side of the zipper which you have to be a little patient to close the bag. I might put a little candle wax or chapstix on it so that it will be easier to pull.

Right now, I haven’t really figured out if I am going to put wet gi/hakama back in the bag or carry a separate drawstring bag.

At 399.95 (430 USD with tax) it’s a bit pricey but I’ve been told the kendo traveller bags from tozando are about $300 (after shipping) but are a bit heavier.

It does the job while looking great. There isn’t any really extra wasted space. But I wished it came with a few more pockets and maybe a velcro panel or two for my patches.

Some other bags I had considered:
Virtue High Roller v4 – too small (15 x 16 x 31 in; 38 x 40.6 x 78.7 cm)
Ruthless Pro Duffle Backpack – too small (12 x 12 x 25 in; 30.5 x 30.5 x 63.5 cm), not rolling
Dakine 365 Roller 75L bag – too small (11.5 x 14 x 28 in; 29 x 35 x 71 cm)
Northface Rolling Thunder 30” Roller – (13 x 16 x 30 in; 33 x 40 x 76 cm) not a spinner

4 Dan exam question

So last November, I was fortunate to have passed the yondan exam after the Covid hiatus.

Part of kendo exams are the essay questions. I chose “Describe the benefits of the Kendo kata (剣道形)검도형 and its relevance to shinai keiko (竹刀稽古)죽도계고;.

Kata is defined as prescribed, choreographed movements or a training exercise meant to preserve and pass on knowledge or techniques of a martial art. It is not only a physical but a mental and spiritual exercise. With much practice, the elements of kata can be incorporated into shinai keiko.

Prior to the development of kendo bogu and the shinai, students of the sword could only practice kata and engage in live duels. But with modern kendo, new techniques were adapted for bogu and bamboo swords that were not true swords. To remain true to the study of the sword, it was necessary to continue the practice of kata with bokuto that simulated the heft, feel and dynamics of a katana. Otherwise modern kendo would become a sport rather than a martial art.

Like shinai keiko, kata requires two participants. For there to be set patterns of behavior and choreographed movements, just like dancing you need someone to lead. So, in kata we have the uchidachi or striking/attacking sword (the one that leads/acts) and the shidachi or doing/receiving sword (the one that follows/reacts). In shinai keiko, the participants assume these roles, alternating between uchidachi and shidachi in the same match multiple times but less formally and less choreographed.

Kata and kendo training start with respect (reiho). It begins and ends with a bow. Respect for your partner translates to caring for the other person because we don’t want to injure them while practicing with a wooden sword and no armor. This should also reinforce respect for each other during shinai keiko.

In order to be safe during kata, we learn the correct distance, timing, posture and correct body movements through repetition. Correct distance, timing, posture and correct body movements or mechanics also translate into better striking during shinai keiko. With enough repetition, these mechanics become internalized or muscle memory and the mind can become free (mushin) from surprise, fear, doubt or confusion.

We learn to harness our spirit or energy through proper breathing, kiai (yaa and toh) and zanshin. We also learn to conserve energy by becoming efficient and minimize unnecessary  movements by keeping things simple.

Kata teaches focus. There should be no relaxation of concentration. The same goes for shinai keiko.

While kata relies on repetition, it is not a static or rigid process. The kata forms have been revised multiple times (1906, 1912, 1917, 1933, 1981) since being instituted. Although there are prescribed movements, they are slightly different for each person (and for even for the same person) each time they are performed. It is the mental focus, the spirit, and the response that should remain the same.

Kata as a part of kendo fits in well with the purpose of practicing kendo as espoused by the All Japan Kendo Federation. It molds mind and body through intense mental focus and physical repetition. It cultivates a vigorous spirit through “yaa and tou” and response of the tachi/kodachi. It is correct and rigid training through carefully choreographed movements, striving for improvement with careful attention to courtesy and honor (respect), sincerity (seriousness) and cultivation of oneself through ten kata that we practice and continue to improve.


Bennett, Alexander C. Kendo: Culture of the sword. University of California Press, 2015, page 44.

Donohue, John J. Complete Kendo. Tuttle Publishing, 1956, pp 110-12.

Inoue, Yoshihiko. Kendo Kata: Essence and application. Kendo World Publication, 2003, page 156.

Ozawa, Hiroshi. Kendo: The definitive guide. Kodansha Intl, 1997, page 98.