Tailor Waist Liner Features: •The Tailor is designed to be worn over the shirt tail, inside the slacks. It helps the shirt resist pulling up while also helping to keep the slacks from sagging down. •Wear it for one week and then leave it at home. Without the Premier Tailor, you'll suddenly be aware how often you re-tuck your shirt in or hitch up your slacks. •All we can say is that IT WORKS! And thousands of satisfied customers agree.