Langben Highly Soft Bamboo Fabric Fashion Underwear for Men: 92% TENCEL™? Modal and 8% Elastane. Which makes our trunks and briefs and boxers 3X more Softer, 50% more Moisture Absorbent Flexible and 360 degree Stretchable than Regular Cotton Fabric. No fading: Rich colours that last a long time. Lovebird's Langben Men’s Underwear has Mark-Free Waistband: No-marks guarantee with anti-roll, Superior Microfiber waistband. Our smooth waistband is not too loose, not too tight, just right! As it loves your back, No pinching for sure! Fit: Body fit offers fantastic support and keep your Private parts comfy in place where it should be with Luxury! True to size but fits snug.