Gym Apparel Market Size, Share & Industry Analysis, By Product Category (Tops & T-Shirts, Shorts, Leggings, Tights & Training Pants, Sports Bras, Sweatshirts, Hoodies & Jackets, and Others), By Consumer Category (Men, Women, Unisex, and Children & Youth), By Price Positioning (Value/Economy, Mid-Range, and Premium), By Distribution Channel (Sports & Fitness Specialty Stores, Brand-Owned Stores, Department Stores & Multi-Brand Apparel Retailers, Online Retail, and Others), and Regional Forecast, 2026-2034