If you’re sick and tired of sticking the end of your shirt back into your trousers all the time, here’s an easy solution.
This special shirt stay belt is made of natural white rubber and leaves no marks even on white shirts. It has a lot of soft teeth, and the size is adjusted by this button.
Put the belt on top of your shirt, teeth outside and a little bit lower than you wear your normal belt. Now put on your pants, and buckle the leather belt just above the rubber one. The friction of the inner side will hold the shirt in place, while the teeth will gently grind under the trousers’ belt preventing them from sagging down. Now the shirt will stay.