I've worn these hiking about 5 to 7 times. There are white stains on the right shin, left shin, and left thigh of the pants. I think it's not mud, but stains from powdered detergent that got on the pants. Please check the photos pic3.4.5! I apologize if I'm mistaken m(._.)m Please refrain from purchasing if you are concerned about the stains or are very particular. Please note that the item may be compressed for shipping m(._.)m Size: M Inseam: Approximately 68cm (hemmed) - Brand: FieldCore - Color: Black - Style: Outdoor Pants - Waist Type: Elastic Waist Thank you for looking.