- Brand: MAMMUT - Model Name: ROCK COURIER SE 20 - Color: Black - Design: Backpack Thank you for viewing. I purchased this new several years ago and mainly used it for commuting. There are no tears in the fabric, but there are minor scratches and marks overall due to normal use. Also, the adhesive strength of the Velcro used to open and close the outer pocket may be slightly weakened. Please assess the condition based on the photos, and as this is a used item, please refrain from purchasing if you are sensitive to such things. Also, due to shipping costs, I will fold it as compactly as possible for shipping, so please be aware of this.