**Design a layered structure for waterproof and sun-proof fabric, similar to the molecular structure studied in laboratories. The fabric should have the functions of waterproofing and sun protection, effectively preventing external factors such as sunlight and rainwater from harming the human body. The structure should include polymer materials and additives, such as UV absorbers and waterproofing agents --s 750 --niji 5** - <@1013268531183362068> (fast)