The undershirt is made of our bamboo viscose and has a special U-neck that make it perfect to wear it with button up shirt. The undershirt was designed to stay tucked in nicely thanks to being slightly longer than the usual t-shirt.
How to measure my natural waist?
To measure your natural waist, measure at your belly button. If your waist is larger than your hips use the narrowest part of your torso to measure your waist.