Bujindo
Men's Japanese Summer Loungewear Set – Navy Muji Cotton – Made in Japan
Men's Japanese Summer Loungewear Set – Navy Muji Cotton – Made in Japan
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Men’s Japanese Summer Loungewear Set – Navy Muji Cotton Chijimi – Made in Japan
Discover the quiet elegance of Japanese summer comfort with this Men’s Japanese Summer Loungewear Set – Navy Muji Cotton Chijimi – Made in Japan. Designed for warm and humid weather, this two-piece summer set includes a relaxed short-sleeve top and matching knee-length shorts, offering a clean, simple, and refined Japanese style.
The Navy Muji design means “plain navy,” making this model one of the most versatile pieces in our Japanese summer wear collection. Its deep indigo-style color gives a calm and elegant appearance, easy to wear at home, outdoors, after training, during travel, or for relaxed summer evenings.
Made in Japan from breathable cotton chijimi, this set is lightweight, comfortable, and practical for daily summer use. The textured surface of chijimi fabric creates a subtle uneven feel that helps reduce direct contact with the skin, allowing better airflow and a fresher sensation during hot weather.
Simple Navy Muji Style
This Navy Muji Cotton Chijimi model is ideal for customers who prefer understated Japanese clothing without strong patterns. The plain navy color gives the set a minimalist, mature, and timeless look. It can be worn as Japanese loungewear, casual homewear, ryokan-style clothing, or relaxed summer wear.
Compared with patterned models, this plain navy version is easier to coordinate with Japanese sandals, setta, geta, tabi socks, or simple casual footwear. It is also a refined gift choice for men who appreciate authentic Japanese clothing and practical comfort.
Product Highlights
- Made in Japan
- Two-piece summer set: short-sleeve top and matching knee-length shorts
- Color / Pattern: Navy Muji, plain navy
- Material: cotton
- Fabric: breathable cotton chijimi with textured shibo surface
- Top design: round neckline with front buttons
- Shorts: elastic waist with drawstring for easy adjustment
- Pocket: yes
- Transparency: not transparent
- Fit: relaxed Japanese summer fit
- Recommended season: spring, summer, and early autumn
Lightweight Cotton Chijimi for Summer Comfort
Cotton chijimi is appreciated in Japan for its light texture and breathable feel. The natural uneven surface, often called shibo, helps keep the fabric slightly away from the skin. This reduces stickiness and makes the garment more comfortable in hot and humid climates.
This men’s Japanese summer loungewear set is especially suitable for everyday relaxation, summer travel, after-training wear, or quiet time at home. The fabric is light, easy to wear, and dries more easily after washing than heavier cotton garments.
| Fabric Thickness | Thin / Lightweight |
| Softness | Regular / Comfortable |
| Transparency | Not transparent |
| Yes |
Recommended Uses
- Japanese summer loungewear for men
- Comfortable homewear for hot and humid weather
- Casual Japanese summer outfit
- Relaxation wear after budo, martial arts, yoga, or meditation
- Ryokan-style clothing for travel and holidays
- Lightweight cotton summer wear for everyday comfort
- Gift idea for men who enjoy Japanese craftsmanship and simple design
Size Chart and Dimensions
Please check the measurements carefully before ordering. Measurements are approximate and may vary slightly depending on the production lot and the natural texture of the fabric.
| Size | Top Length | Sleeve Length | Shoulder Width | Chest Width | Waist | Shorts Length | Inseam |
|---|---|---|---|---|---|---|---|
| M | 72 cm / 28.3 in | 22 cm / 8.7 in | 49 cm / 19.3 in | 58 cm / 22.8 in | 76–84 cm / 29.9–33.1 in | 57 cm / 22.4 in | 25 cm / 9.8 in |
| L | 74 cm / 29.1 in | 22.5 cm / 8.9 in | 51 cm / 20.1 in | 60 cm / 23.6 in | 84–94 cm / 33.1–37 in | 60 cm / 23.6 in | 27 cm / 10.6 in |
| LL / XL | 75 cm / 29.5 in | 23 cm / 9.1 in | 53 cm / 20.9 in | 63 cm / 24.8 in | 94–104 cm / 37–40.9 in | 62 cm / 24.4 in | 29 cm / 11.4 in |
| 3L / XXL | 76 cm / 29.9 in | 23.5 cm / 9.3 in | 54 cm / 21.3 in | 65 cm / 25.6 in | 104–112 cm / 40.9–44.1 in | 63 cm / 24.8 in | 30 cm / 11.8 in |
Measurement guide: Top Length = 着丈, Sleeve Length = 袖丈, Shoulder Width = 肩幅, Chest Width = 身幅, Waist = ウエスト, Shorts Length = ズボン丈, Inseam = 股下.
Size Recommendation
This set has a relaxed Japanese fit. If you are between two sizes or prefer a looser loungewear feel, choose the larger size. For the best fit, compare the measurements above with a similar summer top and shorts you already own.
Material and Origin
- Product name: Men’s Japanese Summer Loungewear Set – Navy Muji Cotton Chijimi
- Set includes: 1 short-sleeve top and 1 pair of matching shorts
- Material: cotton
- Fabric: lightweight textured cotton chijimi
- Color / Pattern: Navy Muji, plain navy
- Country of origin: Made in Japan
Care Instructions
To preserve the deep navy color and natural texture of this Japanese cotton summer set, wash gently in cold water, preferably inside out and separately from light-colored garments. Avoid bleach and strong detergents. Air drying is recommended. The lightweight chijimi fabric is designed to dry easily after washing.
Frequently Asked Questions
Is this Japanese summer loungewear set suitable for hot weather?
Yes. The lightweight cotton, relaxed silhouette, and textured chijimi weave make it suitable for warm and humid summer days.
Is this model patterned?
No. This is the Navy Muji model, meaning plain navy. It has a simple, minimalist Japanese look without a strong printed pattern.
Is this set transparent?
No. The fabric is listed as not transparent, making it suitable for comfortable daily wear.
Is this the same as a jinbei?
This set is close to a jinbei in spirit because it is a two-piece Japanese summer outfit. However, the top has a more modern T-shirt or Henley-style shape, making it easier to wear as casual loungewear or everyday summer clothing.
Can I wear it outside?
Yes. It can be worn at home, outside, while traveling, at a ryokan, during summer holidays, or after martial arts training. Its plain navy design makes it especially easy to wear in relaxed casual situations.
Is it made in Japan?
Yes. This men’s Japanese summer loungewear set is made in Japan and selected for its breathable fabric, comfort, and authentic Japanese character.
Japanese Simplicity, Modern Summer Comfort
The Men’s Japanese Summer Loungewear Set – Navy Muji Cotton Chijimi – Made in Japan is a practical and elegant choice for men who appreciate authentic Japanese clothing, breathable cotton, and minimalist summer style. Simple, lightweight, and easy to wear, it brings Japanese comfort into everyday life.
Japan Origin
- Easy Returns
- Delivery 4-7 Days

Let customers speak for us
from 27 reviews
My haori arrived in a timely manner and was everything I expected it to be and more. The quality of the haori is fantastic, and it fits great!
This pair of shoes is really very comfortable, and the craftsmanship is excellent. It's exactly what I expected. The only problem is that I ordered a pair half a centimeter larger than my usual size, and even so, they're so tight that I can't even wear socks (tabis)!
I loved them, very beautiful and perfect fit if you follow the measure instructions. Looking forward for some outdoors bujinkan training in the spirng!
I wish they would come in 12 version as well
Thank you very much
Just like described, fast shipment. Nothing to complain about :)
The Samue suit is very beautiful crafted - the fabric is soft and very pleasant to wear. A high quality clothing that exudes a genuine Japanese feeling attention to detail. . The tabi shoes clearly high quality. I am very happy.
Super cozy!
out est parfait. Merci
heads raised to the heavens, i am not worthy of the energy without thy consent.
Comfortable and visually stunning
Just the right size.
As this belt was a replacement for my original black belt from 2003, I am very pleased to say that it has the same feel and quality of my previous belt. I teach karate 5 days a week, so I need a belt that stands the test of time. I am positive that this is it!
Confortable et parfsit pour ma taille de pied. C’est super a porter a l’interieur :)
An amazing Gi. More like a samurai robe. Where the tk-10 is stone this is water, not flimsy but heavy but flows like a powerful river. Amazing quality.
I ordered this product as a replacement for a cheap Chinese samue that lasted roughly 3 weeks. This one is on another level. I am 182 cm and 83 kg and the 2L fits me nicely. Although based on the leg length a L would have also worked. The cloth has a nice thickness and texture to it. International shipping was fast. Would definitely recommend...it would also be really nice if this shop would have an European reseller, preferably in Germany ;)
A beautiful, high-quality product — it's a pity about the customs charges for Italy.
Bujindo
Description of Our Products
Origin
Our products are crafted in Japan, reflecting the rich heritage and exceptional craftsmanship of Japanese artisans. Each item embodies the dedication and precision honed through generations, ensuring authenticity and superior quality.
Craftsmanship
All our products are meticulously handmade by skilled artisans in our workshops. We take pride in offering items that showcase traditional techniques and a commitment to detail, making each piece unique.
Materials
We use only the finest, high-quality materials sourced from Japan. Our selection includes noble materials known for their durability and elegance, ensuring that every product not only meets but exceeds the highest standards of quality and excellence.

