This year's genuine indigo-dyed hemp fundoshi is the last one of this kind✽ This is a hemp fundoshi made from hemp (100%) cloth, dyed with genuine indigo dye using "sukumo" made by fermenting tade ai (Polygonum tinctorium) grown in the field. When you first start using it, you'll experience the crisp, refreshing feel unique to genuine hemp. As you use it, the hemp cloth's charm lies in its aging process, becoming softer over time☆ Hemp also has antibacterial properties and a strong purifying power, and has been used in shrines for offerings and in shimenawa (sacred straw ropes) since ancient times. The waist string is made of 100% cotton Japanese patterned fabric. The hem is not sewn to allow for air circulation. The threads that may appear a few times can be cut, and they will gradually settle. I believe that fundoshi are underwear that liberate you from constriction and make your body and mind healthy. Indigo also has antibacterial, deodorizing, insect repellent, and detoxifying properties, as well as benefits for: Cold sensitivity and atopic dermatitis. It prevents the growth of bacteria and prevents wounds from festering. In the past, samurai used to dye their undergarments with indigo, and they would tear indigo-dyed clothes and wrap them around wounds. I feel that clothing has a significant impact on the body, just like food is absorbed through the skin. I want to create indigo-dyed clothing that is gentle on the body and mind, using the traditional methods of Japan's wonderful manufacturing culture☆ Size: Width approx. 32cm, Length approx. 95cm Waist string approx. 150cm ☆What is genuine indigo dyeing?☆ It is a method of making dye by fermenting the leaves of tade ai (Polygonum tinctorium) with only lye, using the power of microorganisms over time (building the vat). After building the vat, it is maintained with only lye, shell ash, and wheat bran. Genuine indigo dyeing does not transfer color at all, and the color fading is gentle. It has antibacterial, deodorizing, insect repellent, and UV protection medicinal effects. It also has far-infrared effects, so it has excellent heat retention. This effect is said to be due to the microorganisms that inhabit the dyed cloth. There are several types of indigo dyeing. Some methods use chemical agents to easily and quickly create the dye, or add glucose or starch syrup during the vat building process to quickly reduce and dye a dark color in a short amount of time. Easy indigo dyeing can cause significant color fading and transfer (recently, it seems that chemicals are used for color fixing). I believe that the medicinal effects of the original indigo are not utilized. Clothing dyed with genuine indigo dye feels good on the skin, and I myself love and use it. Since the materials are safe to put in your mouth, it is safe to return them to the earth and does not pollute the planet. I hope you will experience the comfort♪