Very light use. The only part that looks dirty is the white part on the top. The Mountain Hardwear Scrambler 30 OutDry Backpack is a waterproof pack for year round adventure in adverse weather conditions. OutDry® construction at the main compartment keeps contents on the inside dry, so once you make it to your overnight camp, summit or crag. Capable of carrying climbing gear such as shoes, harness and rack to extra layers and lunch on a hike and even skis or ice axes. Tuck your hydration bladder (not included) into the hydration sleeve to stay hydrated for miles and stash extra water bottles into the side pockets. Whatever you're carrying and wherever you're going, the goods on the inside will stay dry and happy.