Modal is a regenerated cellulose fiber developed by Austrian Blue Crystal Company. The raw material of this fiber is beech from Europe, which is first made into wood pulp and then processed into fiber through special spinning process. The raw materials of this product are all natural materials, which are harmless to human body, can be naturally decomposed and will not cause environmental pollution. Underwear made of modal has a smooth and bright surface and feels particularly comfortable. When it touches the skin, it feels cool and relaxed, and its elasticity and toughness are better than pure cotton. It can also absorb water and breathe air, which is beneficial to human circulation and health. At the same time, it is durable, softer and brighter when washed. It is the first choice for underwear. So we have a clear understanding of the working principle of modal underwear. After understanding the benefits of modal underwear, we have a strong interest in this underwear. In real life, we can tell whether an underwear is genuine modal material by the following methods. First, look at the label. Where the modal fiber produced by Blue Whale Company is used, each garment has a tag issued by Blue Whale Company, which is usually expressed in multiple languages and marked with the registered trademark of Modal. Second, look at the price. Modal fiber underwear is generally more expensive, ranging from tens of yuan to hundreds of yuan. If the underwear you see is extremely cheap, it must be fake. Third, look at the texture. Modal fiber underwear is soft, breathable, close-fitting, elastic, durable, smooth and colorful.