The lightweight and durable nylon HELIAD 15 backpack is perfect for everyday use(^^) I used it once. I bought another one and no longer use this, so I'm selling it. I think it's almost like new! Thank you for your consideration (∩´∀｀＠)⊃ - Brand: Arc'teryx - Model Name: HELIAD 15 - Color: Black - Style: Backpack - Material: Nylon