Precautions for pre-orders

In principle, we cannot accept cancellations or returns for pre-ordered orders.

In addition, shipping may be delayed due to production circumstances. Please note.


Artisan pattern maker by hand

eco package


The DRAGON series of fitted pants are made of bulging, high-stretch material, designed to retain the gentle texture of cotton. A special processing gives it a luster and adds an accent to the look of the fabric. It is recommended for training that emphasizes weight, squats for up and down exercises, and aerobic training for walking and running.

  • Reliable MADE IN JAPAN with a commitment to quality
  • The "Dragon" logo, which expresses strength, gives you power.
  • Comfortable material that is compatible with training
  • The reflector print of the reflective material creates a sense of luxury.
  • Functional left and right pockets for keys and smartphones
  • cotton texture

■ Product details

- material
(Body: 64% cotton, 32% nylon, 4% polyurethane)
- Made in Japan
- Model NO-STR-048

size waist ferry Rise inseam
M. 72 30.7 31 71.4
L. 76 31.8 32 72.4
XL 80 32.8 33 73.4

▼Reference size (in the case of height standard)
M : 160-170cm
L: 168-178cm
XL: 175-182cm

▼ Photo model: Alvaro wearing XL size
Height 178cm Chest 120cm Waist 80cm Inseam 75cm Weight 90kg

▼Hidemasa Yamagishi wearing XL size <br>Hidemasa Yamagishi Height 168cm

*In the case of elastic fabric, there may be errors in size.

Care instructions

*Please refrain from using a dryer as it may cause the print to peel off and the fabric to stretch.

・Avoid using bleach.
・Do not soak, do not soak for a long time or leave it wet.
・Use a net when washing, and after washing, adjust the shape before drying.
・Dye may transfer when washed with water, so wash separately from other items.
・Avoid ironing the printed part.

For accurate care instructions, please follow the precautions listed on the product's washing and quality label.

Find other products
Leg training is also called the hardest event. That's why I wanted to focus on comfort.

pants that fit your legs

Squats that stimulate the gluteus maximus and hamstrings to train the muscles of the entire leg, deadlifts that lift heavy weights such as barbells up and down, running aerobic exercise for fat burning, and all exercise movements that fit your legs. I made pants to wear.

Soft texture and high stretchability

We chose a comfortable material for training at the gym from among many fabrics. "Fit pants" that fit the fabric to the skin can be used for a wide range of activities, from vertical exercises such as squats to aerobic exercises such as walking and running. The bottom of the crotch is especially shaped to accommodate bending and stretching of the lower body. "Fluffy comfort", "High elasticity", and "Compatible with all exercise variations" are the characteristics of STIMIRON's fitted pants.

Best crotch shape for muscle training

The fit pants are designed with a wide crotch for ease of movement and a wider range of motion during strenuous exercise. The roomy design is also suitable for bending and stretching exercises and squats, and the fitted shape provides firm support for muscle movement. The tight fit of the pants prevents them from slipping during exercise and reduces stress.

Zipper for easy on and off

Ankle zippers make it easier to put on and take off the fitted pants for a comfortable gym time. It also has good ventilation and reduces stuffiness.

“I wanted to make pants that would give you strength when you put them on.”

motivate me
STIMIRON fit pants for you.

2 color variations

Black - chic and mature color

A very popular color for training apparel, "black" gives a simple and stylish impression. The feature is that dirt and sweat are hard to stand out.

Gray - simple calm color

Gray with a chic and cool impression goes well with various colors, so it is attractive that it is easy to coordinate with tops and shoes.

best dragon line for training

Dragon Series

March 2023. Hidemasa Yamagishi declared his return to the contest. We created a new apparel design line for HIDE YAMAGISHI, which competes in the world with the concept of "challenge" in the future.

Designing the strength of Hidemasa Yamagishi

Origin of dragon

Once called the Bruce Lee of the bodybuilding world, the dragon is now Hidemasa Yamagishi's trademark. As a new line of STIMIRON, we created the "Iron Dragon Logo" with the motif of the dragon that can be seen on the left arm.

STIMIRON's most important point when choosing fabrics

Pursued comfort

I was particular about comfort so that it would be easy to use for training. I wanted a comfortable fabric for dumbbell training, machine movement, and aerobic exercise.

what the dragon shows

Symbol of courage and challenging spirit

What STIMIRON's dragon series expresses is the "spirit of continuing to challenge" itself. The dragon, which is a symbol of strength, power and courage, is central to the design concept.