Ultra-Long Cold/Hot Retention with Advanced Thermal Tech Featuring a triple-layer insulation system—high-density foam, reflective aluminum barrier, and waterproof outer shell—this pack keeps food and drinks icy cold for 16+ hours or piping hot for 8+ hours, outperforming standard coolers in extreme temperatures. Colossal 40L Capacity with Customizable Compartments The spacious main compartment fits 48 cans, a full-sized roast chicken, or 6 large meal containers, while the 3 removable dividers let you organize snacks, utensils, and condiments. Includes a side mesh pocket for water bottles and a front zippered pouch for napkins/cutlery. 100% Leak-Proof & Spill-Proof Construction The food-grade PEVA lining is seamlessly welded and reinforced with double stitching to prevent leaks, even when carrying melted ice or soups. The anti-condensation exterior stays dry, avoiding messy puddles on tables or car seats. Rugged, All-Terrain Design for Outdoor Use Built with abrasion-resistant 900D polyester and a reinforced rubber base, this pack withstands rough handling, sand, and mud. The padded, adjustable shoulder strap and dual side handles distribute weight evenly for comfortable carrying during hikes or camping trips. Compact & Portable for Daily Use Despite its massive capacity, the pack folds flat in seconds for easy storage in closets or trunks. The detachable bottle holder adds extra storage, while the minimalist, unisex design suits picnics, road trips, work lunches, or beach outings—a true all-in-one solution!