This has been posted on the #run1000miles FB group:
"Hope this is ok to post. Bum bag with full kit and an extra pair of gloves fell off the roof of the grey car in front as I was driving away from helm winter league at birkrigg today. Would love to give back to the owner. Pete bland is on the logo of the bum bag. Pm me and we can arrange return."
If not a member of that group, pm me and I'll act as a link to the lady concerned.
She has posted a picture of a dark blue PB bumbag and a pair of grey fleece(?) gloves