- Product Set : Receive two triangular insulation bags in different sizes: Small (13.5x7x13 cm) and Large (23.5x13.5x21 cm). Ideal for transporting lunch to travel, gym, picnics, or work. - Innovative Design : Featuring a unique triangular shape, these bags perfectly fit lunch boxes, optimizing space and maximizing capacity. The top includes straps for convenient carrying. - Efficient Insulation : The thickened insulation layer effectively retains temperature, keeping food warm for 3-4 hours in winter and fresh for 2-3 hours in summer, ensuring your meals stay delicious. - Durable and Waterproof : Made with high-quality waterproof Oxford material on the outside, and food-grade aluminum lining on the inside, these bags are easy to clean and resistant to oil, promoting hygiene and longevity. - Versatile Use Cases : Perfect for daily lunch at the office, meals on road trips, or snacks during outdoor adventures, ensuring you always have fresh food on hand. - Compatibility : Designed to accommodate various lunch box sizes, making it a practical choice for anyone needing reliable food storage.