Hi there! Thank you for reaching out to melin! We are sorry to hear that you are experiencing staining issues with your Trenches Icon Hydro hat. We appreciate your feedback and we apologize if the hat did not meet your expectations. We do have a warranty under our hats for any manufacturing defects. Our customer service team would be more than happy to assist you with this issue and make sure you are fully satisfied with your purchase. You can reach out to us through our contact on www.melin.com! If you have any more questions or comments, please let us know. Have a great day!