WARRANTY AND QUALITY: KUROMI 3D Official Backpack adaptable to trolley with 2 years warranty UNIQUE DESIGN: 3D thermoforming front design. Made from a very durable polyester material and smooth zippers. Easy to wash SPACIOUS AND LIGHTWEIGHT: Side bottle pocket Personal ID Card ERGONOMICS AND COMFORT: Padded shoulder pads with anti-sweat mesh. Hand handle on top. Adaptable to backpack carrier. Safta RESISTANCE AND DURABILITY: This product is specially designed with durability in mind, made with high strength materials to ensure that it can be used in all kinds of activities, ensuring its functionality