Labels in the garments will urge buyers to contact their GP if they notice possible signs of breast or testicular cancer.
And packaging will feature QR codes that can be scanned with a smartphone to access more advice on the web.
The labels will launch in men’s boxers, and later crop top bras, sold by Morrisons in its own-brand Nutmeg clothing range.
Dame Cally Palmer, NHS England’s national director for cancer, said it was the first time the health service had partnered with a supermarket to put messages on clothing.
She added: “Cancer survival is at an all-time high – survival for both breast and testicular cancers have improved significantly over the last 50 years and we’re seeing more people than ever before diagnosed at an early stage.
“This partnership with Morrisons is just one of the many ways we are ensuring people are aware of potential cancer symptoms.
“I want to urge everyone to be aware of their own bodies – please look out for lumps and bumps or anything else that is unusual for you – and get checked out early, it could save your life.”
Symptoms of breast cancer include a lump or change in the look, shape or feel of breasts, while warning signs for testicular cancer include painless swelling, a lump or change in shape or texture of the testicles.
More than nine in ten women survive for at least five years if their breast cancer is diagnosed at an early stage, but this falls to 39 per cent if the cancer has spread to other parts of the body.
Almost all men survive testicular cancer but if the cancer has spread, five-year-survival rates can reduce to 65 per cent.
David Scott, corporate affairs director at Morrisons, said: “We are proud to be leading the way in offering NHS England a new route to reach customers with important messages about body awareness and the symptoms of breast and testicular cancer.
“The new care labels on our crop top bras and boxers urge people to get to know their bodies so that they can more easily notice changes and to contact their GP practice sooner if something doesn’t feel right.
“In the majority of cases, it won’t be cancer, but where it is cancer, diagnosing it early means treatments are more likely to be successful and can ultimately save lives.”
