I used it 2-3 times at a campsite. Both times were inside a tent, so there is almost no dirt, but as you can see in the image, there is a small amount of white dirt. I don't think it's a concern for outdoor use. I think it will come off if you wipe it with a towel. It's a large size, so even large men can rest comfortably. I used it at 174cm and 80kg, and it was spacious. Anyway, it can be set up with one touch, and it takes less than a minute to pack up. It's just that easy. The product description is quoted from the HP. It is ergonomically designed with a slight angle at the neck, so your head can be tilted and you can sleep comfortably. Double-layer fabric folded seam for increased strength and a stable frame structure. It can be set up in seconds, and even women and children can assemble it easily. Comes with a multi-functional pocket on the bedside for easy storage of mobile phones, magazines, and bottles.