Efficient Thermal Insulation and Freshness Preservation: Upgraded 5mm EPE insulation layer blocks external temperatures, keeping drinks cold for up to 5 hours and hot foods warm for up to 3 hours. Waterproof lining prevents condensation leakage, meeting core needs of a picnic cooler bag. Scientific Storage Organization: Main compartment 30L stores picnic blankets and food; front pocket secures utensils to prevent collisions; side mesh pockets hold 4 bottles; top quick-access pocket for keys and phones. Eliminates cluttered storage struggles. All-Weather Protective Materials: Oxford fabric shell resists tearing; TPU coating provides water resistance. Removable wipe-clean base mat handles damp environments such as beach and grass, making it ideal for rainy-day hiking. Enhanced Ergonomic Handling System: Reinforced dual-carry handles with padding reduce hand strain. Extra-wide base stabilizes contents during transport; reinforced stitching supports up to 35 lbs. Perfect as a portable picnic carrier for park outings. Use scenario: Park picnics or outdoor gatherings where you need to carry blankets, food, utensils and multiple beverages in an organized way. Use scenario: Beach or grassy areas with damp ground, using the wipe-clean base mat and water-resistant shell for easy maintenance. Use scenario: Day trips or hikes in all weather, benefiting from insulation, weather resistance, and a sturdy carrying system.