This sweat protect undershirt is the right choice if you sweat more than average.
This undershirt has a unique underarm design. Two layers of fabric provide extra sweat absorption for when things heat up.
The fabric is 95% bamboo viscose mixed with 5% elastane for a super-smooth, lightweight material that moves with you. You'll hardly notice you're wearing it. The body is long, so it stays tucked all day.
If in doubt, size down. Undershirts should be worn as a close fit.