"Flaminko", a sweat barrier user, has put together a blog about her impressions of using the sweat barrier. Even from the manufacturer's point of view, the content captures the features of the product brilliantly. Moreover, since it is introduced by comics, it is easy to read. Ladies and gentlemen, please take a look at it once.
Flaminko's blog https://flamin-ko.com/life/sweat-barrier/