![kb](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Breathable. It is comfortable, not stuffy, light and not heavy. Breathable, stretchy and popular.You can wear it anytime, wear it alone in summer, as an inner layer in spring, autumn and winter. It is highly practical, so it is worth having it.Not only is it useful for outdoor activities such as running and walking, but it is also useful for commuting to work or school, or when traveling.