Sweatshield UndershirtsSweatproof Undershirt for Men, Crew Neck, White, Sweat Pads

I have pretty bad hyperhydrosis (I sweat even when I’m not hot or being active) I used to have huge sweat marks on my dress shirts. This completely stopped that! The shirt was a bit snug, but I am wearing it as an undershirt so I don’t mind. The length was plenty long to stay tucked in. I bought other ones in the past that were too short.Stretchy comfortable material.They are a bit pricey, but definitely worth it. I own a few pairs and will buy more when they have my size in again.

Liegt eng am Körper an und eignet sich gut, um es unter einem Hemd zu tragen.

My husband purchased this. He thinks it’s brilliant. No more marks on his t shirts. He has said it doesn’t make him hotter wearing the extra layer

So not sure it's actually sweat-proof but I use it to keep the unpleasant odors at bay in situations where it would not be good, like interviews. I've used it under a dress shirt and I can't say that the odors are not noticeable but with the extra material it's probably not as bad as it could have been without a undershirt. The best test would be with a suit during the summer which I will try. So far, I think it has helped and for those worried provides a extra layer in addition to deodorant, etc.

Miraculously, it keeps you dry and does a great job of masking your sweat.