Why you need this coffee air jug Keeps beverages hot for up to 48 hours so you can enjoy a consistently warm drink during long commutes, outdoor activities, or multi-hour meetings. Prevents spills and leaks with a robust locking mechanism, reducing mess and protecting bags, laptops, and other items. Designed for everyday use and easy maintenance: large mouth opening allows fast filling and one-sponge cleaning. Key features and how they solve problems Reliable multi-layer insulation: a thickened PP outer layer, PU foam insulation and a stainless steel insert work together with vacuum insulation technology to maintain temperature and protect hands from heat. The stainless steel interior is non-reactive, preserving the beverage’s natural flavor. Long-lasting thermal performance: vacuum insulation technology provides up to 48 hours of heat retention. Note: this product provides passive thermal insulation only and does not include a heating element. Secure sealing lock: a strong locking mechanism ensures a tight seal to prevent spills and leaks during transport and movement. Large mouth opening: simplifies filling, pouring and cleaning—clean effectively with a single sponge and refill without splashing. Materials and performance Outer material: thickened polypropylene (PP) for impact resistance and a comfortable external surface. Insulation layers: polyurethane (PU) foam plus vacuum-insulation technology for extended thermal retention. Interior: stainless steel insert for safe, tasteless contact with beverages and easy cleaning. Function: passive thermal insulation (no active heating). Practical uses Commuting and travel: keep coffee or tea hot throughout a workday or long trip without reheating. Outdoor activities: take warm drinks on hikes, picnics or camping trips while preventing leaks in backpacks. Office and meetings: bring a prepared beverage to meetings and keep it warm for hours without affecting flavor. What sets this product apart Combination of robust construction and vacuum insulation for superior temperature retention up to 48 hours. Leak-resistant locking mechanism for secure transport. Large-mouth design for fast, hygienic cleaning and easy refills. Materials, function and performance are consistent with the original product specifications: thickened PP outer layer, PU foam insulation, stainless steel insert, vacuum insulation technology, secure locking seal, large mouth opening, up to 48 hours passive heat retention (no heating function).