Swimwear has been a staple of summer fashion for centuries. From the modest bathing costumes of the 1800s to the revealing bikinis of today, swimwear has undergone many changes in style and function. In the early 1900s, swimwear was primarily made from wool and was designed to cover as much skin as possible. As attitudes towards modesty began to change, swimsuits became more form-fitting and made from materials like nylon and spandex. The bikini, named after an atomic bomb test site in the Pacific Ocean, was introduced in 1946 and caused a sensation. Today, swimwear comes in a variety of styles and sizes to suit every body type. From one-piece suits with cutouts to high-waisted bikinis, there is something for everyone. Swimwear not only serves a practical purpose but also reflects changing attitudes towards fashion and society. It will continue to evolve with time while remaining an essential part of summer fashion. 
 
In summer, the swimming pool or the beach is a good place to go, and swimsuits are essential. However, some people wear tight swimsuits, and some loose ones. Some people don’t prepare swimsuits in advance, and just buy a swimsuit on the side of the road; put it on when they arrive at the place. This is not good.
 
Four ways to choose a good swimsuit
Swimwear must fit well. If it is too big, it is easy to keep water during swimming, which will increase the weight and resistance of the body and affect swimming movements. Therefore, it is advisable to wear swimwear and pants that feel comfortable on the body. Middle-aged and elderly people should choose pure wool or cotton wool products, preferably in dark colors; young people can choose beach-style nylon swimsuits, preferably in bright colors, which can be more attractive.
 
When choosing a swimsuit, you should pay attention to the fabric, workmanship and style:
1. Fabric and structure
It is best to choose elastic fabrics with a nylon content of more than 15%, so that the swimsuit can expand and contract freely with body movements. When swimming in a swimming pool, attention should be paid to the fabric's effect on the chlorine molecule content of the swimming pool water. Swimwear made of three-dimensional elastic fabrics is most suitable for low-temperature water or swimming pools, because this fabric is hollower and it’s easy to maintain body temperature. At the same time, try to buy as little as possible or not to buy imitations, that is, so-called imported nylon high-elastic fabrics. The reasons are that the nylon content of clothing fabrics is generally around 15% to 20% and the imitation fabrics have extremely poor resilience when used due to compositional variation. In addition, when swimming in natural rivers, seashores and deep water, you should choose a swimsuit that is in contrast to the color of the water. In case of danger, you will be more obvious, which is convenient for first aid.
 
2. Workmanship and safety
Since swimwear is sports and practical clothing with good stretching force, it is best not to choose styles with more pieces. When there is a lot of exercise, the stitching is easy to be opened. The elasticity of the thread should be consistent with the stretch of the fabric. 
 
3. Hygiene
The surface layer of silk-covered cotton swimwear has the advantages of smooth and bright chemical fiber fabrics, and the inner layer is woven with pure cotton, which is non-irritating to the skin, and is especially suitable for those who are prone to skin allergies. Swimsuits should have interlining, and swimsuits with linings have a longer lifespan.
 
4. Styles
Nowadays, various swimwear brands make swimwear stylish to meet the needs of wearing styles.