Skinny Clip Waistband Tightener - Replace Belts For Women & Men Hold Up Your Pants Waist Cinch Adjustable Pant Skirts Shorts Jeans Multicolor 4 Pack at Amazon Men's Clothing store
How to Tighten Pants Without Belt: Step-By-Step
This futuristic metal buckle tightens your pants… without a belt! - Yanko Design