Efficient insulation technology The backpack uses waterresistant fabric to block heat, paired with a doublelayer foil lid for thermal retention. Beverages stay cold for up to 8 hours and meals remain fresh for up to 4 hours during extended use. Enhanced packing solution 50L main compartment provides ample space for larger loads. Front double pockets and elastic mesh offer tidy, accessible storage for every item. Leak prevention Reinforced seams and waterproof lining ensure secure transport for liquids, preventing spills even with bottles or soups, while maintaining durability during use. Ergonomic design for comfort Wide, breathable shoulder straps and honeycomb back padding reduce strain during hiking or biking. Design supports balanced weight distribution for extended wear. What this means for you Large capacity to carry meals, drinks, and gear in one bag, suitable for extended outings. Reliable temperature management keeps food and drinks organized and ready when you need them. Built to protect contents from leaks and weather, giving you peace of mind on the go. Comfortable to wear for long periods, making it suitable for daily use, longer trips, or outdoor activities. Usage scenarios Day hike or bike ride: pack meals, snacks, and beverages with reliable temperature retention and easy access via front pockets. Road trip or commuting: transport lunch and drinks securely, with space for additional items in the 50L main compartment. Picnic or outdoor event: keep foods fresh and liquids contained, while enjoying a comfortable, balanced fit for extended wear.