High-concerned chemical: none Craft of Weaving: Knit Model Number: W3113 Pattern Type: Solid Material: Nylon,Elastane Brand Name: under moon Origin: Mainland China CN: Anhui Gender: Men Briefs & Boxers: BRIEFS How to Find Your Perfect Size? 1. Measure Your Best-Fitting Underwear: Lay a pair of your current underwear that fits you well on a flat surface. 2. Key Measurements: Waist: Measure across the waistband. 3. Compare with Our Chart: Match your measurements to the chart below. If between sizes, we recommend sizing up for a relaxed fit. Unsure? Message us your height, weight, and usual size for a personalized recommendation! Size Chart Photos Real Reviews, Real Confidence