In 1970, an innovation occurred in napping technology. At the time, the new technology we developed made it possible to trap more air in the raised part than before, creating a knitted fabric with extremely high heat retention and a gentle texture.
Products made with this new knitted fabric quickly gained popularity and became popular among fun people who needed heat retention, from outdoor sports to motorcycle touring, working in low temperatures, and in extremely cold regions overseas. .
These are our roots.
 
45 years since that innovation.
Outdoor freaks got together and started a project to redesign the product. While maintaining the high level of heat retention that we have cultivated over the years, we pursue stress-free comfort and a simple design that can be used for a variety of purposes, from the field to the city.
Thus, YETINA was born.
 
YETINA continues to evolve every day to eliminate "cold" from Japan.

What is napping?

Patented technology used in YETINA. It is a special brushing technique. Simply put, raising is the process of raising the surface of cloth. The brushed fabric is soft to the touch and has high heat retention due to the fuzzy fibers.
 

Why YETINA brushed hair is special

YETINA knitted fabrics are special.
The condition of the knitted fabric is pile knitting (Illustration 1). Pile knitting is knitted in loops like a towel. These loops play an important role in trapping air and providing cushioning to the fabric.
 
However, when this pile knit is brushed using the conventional method, the fabric becomes fluffy and the loops are destroyed as well, as shown in illustration 2. In other words, you can't take advantage of the loop.
 
On the other hand, YETINA's napping does not destroy this loop and only raises the upper part as shown in illustration 3. This method allows air to be trapped in both the raised part and the loops, resulting in a fabric with excellent heat retention.

YETINA heat retention

The thick air layer created by YETINA's brushed fabric blocks outside air and prevents body heat from escaping, achieving high heat retention. In addition, excess sweat moves from the lining to the outside and evaporates, making it less stuffy and comfortable.

This is a graph comparing the heat retention of YETINA and other fabrics. Comparing the heat retention rate under certain conditions, it was proven that YETINA has a higher heat retention ability than other materials or brushed materials.
* Place the experimental dough on a hot plate whose temperature is always controlled to 30°C, and blow air at 20°C and a wind speed of 0.3 m/s from above. The heat retention rate is calculated from the power consumption to maintain the heat plate at 30°C and the power consumption to maintain it with the fabric placed on it.
The less power consumption is required to maintain the heating plate at 30℃, the better the heat retention ability of the fabric is maintained.

The machine that produces YETINA is a circular knitting machine invented over 40 years ago. Based on the B-type knitting machine, various modifications have been made to achieve a special nap.

Since it is an old analog machine, maintenance and adjustment by craftsmen is essential. We always keep an eye on them to maintain uniform quality.
The thread used was specially prepared for YETINA. This has the perfect formulation and twist for brushing.
These yarns are used to create unique stitches that are perfect for brushing.
 
There are various methods of brushing, but YETINA uses a special brushing technique to ensure even heat retention.
Also, in order to make the nap even, it is necessary to rotate at a low speed. As a result, production efficiency is poor, and the number of knitted items is halved compared to those without brushing.
 
However, all steps are necessary to achieve the warmth of YETINA.
YETINA's fabrics, which are made using a lot of time and effort, boast extremely high heat retention and a gentle touch.