The NWT Columbia Trek 24L Light Weight Backpack is a versatile and durable shoulder bag made of polyester material with a nylon frame. It is designed to fit a max 15" laptop and has a zip closure for easy access. This medium-sized backpack in blue/navy color is perfect for backpacking and outdoor activities, with a capacity of 24L and a lightweight design of only 0.8lb 1.0oz. The Columbia brand ensures quality and reliability, making it a great choice for unisex adults looking for a practical and comfortable backpack for their adventures.