How to use: Just put on this tank top like any other top before your outdoor activities such as hunting or hiking. It's suitable for all - day wear. Attention: Refer to the sizing guide in the photos to choose the right size for you. Maintenance advice: Since it has an anti - bacterial finish, you don't need to wash it too often. But when you do, use a mild detergent and wash it in cold water. Avoid using bleach as it may damage the fabric and the anti - bacterial and wicking properties.