Hi Susan,
Thank you very much for taking the time to review! Glad it works well for you. For closing the pack for full weather protection, there is a slight knack, it's definitely easier to do when the pack is packed. when the closure is fully unrolled, it takes two folds, then a final third fold, which folds underneath the lower flap.
Please do get in touch with us at support@theomm.com if you have any further questions!