Merino wool is a material that is so excellent in regulating body temperature that it is called a "natural air conditioner" and is highly regarded for its functionality in mountaineering and sports situations. IKOU's underwear uses a very fine fiber of 16.5 microns called "Super Extra Fine Merino". The tingling sensation peculiar to wool has been reduced as much as possible in pursuit of a texture. Children who are "not good at regulating body temperature" and "sensitive to touch" are wrapped in a material that retains heat, releases moisture, and is soft. ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ What are the functions of merino wool? [Warm in winter, cool in summer] You may think of wool as a winter material, but merino wool is a material that can be worn in all seasons because it has an excellent ability to regulate temperature and humidity. The wool fibers are Mr./Ms. frizzy and can contain air, so they have excellent heat retention and can stay warm in winter. In addition, in the summer, it absorbs sweat and releases heat and moisture, so you can spend a comfortable time without getting stuffy inside your clothes. 【Smooth and comfortable】 Merino wool has excellent moisture absorption and moisture release properties, and Mr./Ms. absorbs sweat and dissipates moisture. It is said that wool absorbs moisture about twice as much as cotton and about 30 times that of polyester, and it uses the temperature difference with the outside air to dissipate moisture, so you can keep the surface of the fiber smooth and comfortable at any time. [Sweat does not get cold] The fibers of wool are scaly, they repel water on the outside and absorb moisture on the inside. Even if sweat is absorbed, wool does not stick to the skin and does not easily lose body heat, so it does not get cold in sweat. [UV cut function] Merino wool has a natural UV protection function. [Return to the soil and be environmentally friendly] Wool, which is made from natural proteins, is an environmentally friendly material that returns to the soil because it is broken down by microorganisms. [Naturally derived antibacterial and deodorant function] Merino wool is said to be less prone to the growth of odor-causing bacteria and bacteria because the surface of the fiber is water-repellent. In addition, it can be worn hygienically due to its naturally derived functions, such as stains because it repels dirt and dust repellent because it does not easily generate static electricity. These excellent features are said to have been prepared to ensure that the sheep are comfortable in nature all year round.