The “Mad Men” star encouraged women to get mammograms and ultrasounds while noting that October is Breast Cancer Awareness Month.
Her pink bra also happened to match her newly dyed hair.
“October is Breast Cancer awareness month! please please don’t procrastinate getting your mammograms/ultrasounds ladies!” Jones, 42, captioned the photo.
She added: “Sending love to all who have fought and are currently fighting, and to those in my family who are, I love you and am standing with you!”
The actress then revealed she purchased the bra from KiT undergarments, which is giving proceeds made from sales to the Women’s Breast Cancer Research Fund.
One commenter asked who took the photo for Jones and she cheekily replied, “my Breast friend.”