Global Casual Shoes Market Size, Share & Demand Report By Product Type (Sneakers, Slip-ons & Loafers, Sandals & Flip-Flops, Casual Boots, Moccasins & Driving Shoes, Espadrilles), By Material Type (Leather, Textile, Rubber & EVA, Suede & Nubuck, Sustainable Materials), By End User (Men, Women, Kids), By Distribution Channel (Online Retail, Specialty Stores, Supermarkets & Hypermarkets, Brand Outlets), By Region & Segment Forecasts, 2026–2031