This is a Coleman backpack I purchased over ten years ago for my child's kindergarten overnight trip. It's an older model, and I haven't been able to find the exact same one online, so I apologize if I'm mistaken, but I believe it's a 42-50L size. However, I don't know the model number, so I can't say for sure. The condition is good as it has only been used a few times, but there is a white paint-like stain on the surface. I think it would be useful for travel, outdoor activities, etc., so please consider it. I will fold it up for shipping. m(_ _)m