Barsty Men's Thong G-String Elastic Smooth Bikini Airplane Underwear MEN'S BRIEFS:Pure cotton Clearing mite antibacterial effect, good affinity to skin, breathable moisture, not out of shape Anatomically-shaped pouch is roomy and naturally shaped to accommodate your package for a sexy boost and profile S:Waistline(26"-30" stretch )M: Waistline(28"-31.5" stretch )L:Waistline(30"-33.5" stretch ) Hand wash ONLY,slightly,cold water