Brand: ROCKBROS Product Name: Fridge Bag Material: 840D TPU Weight: 2501g Main Capacity: 18L Front Pouch: 2.5L Color: Dark Gray PHYSICAL COOLING TECHNOLOGY: Utilizes multi-layer thermal insulation material. You can add ice cubes or ice packs to achieve up to 68 hours of low-temperature freshness, suitable for outdoor picnics, camping, commuting, and enjoying a chilled experience anytime. REMOVABLE COMPARTMENT DESIGN: Innovative removable front compartment design. One bag serves two purposes: the front compartment can be used as a stylish shoulder bag for both commuting and shopping, combining practicality with a sense of style. DUAL SHOULTER STRAP DESIGN: Ergonomic dual shoulder straps are lightweight and effortless, conforming to the curve of the back, with no pressure on the back even over long periods. Frees up your hands, convenient for travel. WAIST & SHOULDER LOAD DISTRIBUTION: The combination of wider load-distribution straps and an adjustable waist belt scientifically distributes the backpack's weight, reducing pressure on the shoulders, neck, and lumbar region. Makes traveling easy even when fully loaded. HIGH-VISIBILITY REFLECTIVE STRIPES: High-visibility reflective stripes on the side of the bag provide clear reflection when walking or riding at night, significantly improving recognition. Can be used with peace of mind in dark environments.