I've been using shirt straps to tuck my uniform shirt in for almost 20 years and I've never seen anything like it. The elastic is too thick, easily three times thicker than other shirt straps I've used. The button head at the end of the belt cannot be pushed through the center hole, the rubber is too thick and inflexible. I never managed to close it so I never wore it but I can't imagine it being comfortable. I returned it. I do not recommend this one!