Underwear Market Size, Share & Industry Analysis, By Gender (Men [Briefs, Boxers, Boxer-Briefs, and Others], Women [Panties, Bras, Lingerie, and Others], Children, and Unisex), By Price Range (Luxury, Mid-range, and Mass/Economy), By Material (Natural, Synthetic, Blends, and Others), By Distribution Channel (Supermarkets/Hypermarkets, Specialty Stores/Brand Stores, Department Stores, Online/E-commerce, and Others), and Regional Forecast, 2025-2032