Your running shoes are a training device which need regularly care and cleaning to ensure a longer lifetime. If your shoes are really dirty, let them dry and brush off the mud and coarse dirt thoroughly without any water. Do not use water, as this will result in the penetration of water and mud into the sensitive mesh material. Once the coarse dirt is off the shoe you can wash the shoes with a cloth using water and gentle soap. If your inner soles are dirty you can take them out and handwash them with warm water and soap. The outsole is robust and durable and can be washed with a strong brush and water.