@dianne great question! Yes, the REI Co-op Pike Street Trench Coat is washable! Because it's a waterproof fabric, there are some special care instructions. You want to avoid harsh detergents - we recommend using Nikwax Tech Wash for washing waterproof fabrics. We then recommend re-upping the DWR on the outside of the jacket, using Nikwax TX Direct (spray on or wash-in). You would then put the item in the dryer for a few minutes to activate the DWR, then hang the jacket to dry the rest of the way. Here's a helpful article that gives you even more detail about caring for a waterproof layer - hope this helps!