The Mark Hughes Foundation is selling Beanies for Brain Cancer at Khans IGA.

There are two available: a pink beanie with a pom pom, or a dark grey beanie.

Mark Hughes and his wife Kirralee formed the Mark Hughes Foundation in 2014 after Mr Hughes was diagnosed with brain cancer. He wanted to help find a cure.

"When you live with brain cancer you really appreciate how precious time is," Mr Hughes said.

"We came up with the idea of a beanie for a fundraiser after noticing a lot of patients wearing beanies to cover bandages and scars and keep their shaved scalps warm. And so... 'Beanie for Brain Cancer' was born."

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To date, the beanies have raised more than $5.5 million. Overall, the Mark Hughes Foundation has raised more than $10 million in five years.

The money has funded brain cancer research and trials, as well as helping to establish a biobank and brain cancer care nurses.

The beanies are $25 each.

In the first year, Mr Hughes said only a few hundred were ordered and sold outside areas like Bunnings and football games to raise money.

They are now available in Lowes stores across Australia, as well as in IGA stores in NSW. The NRL will also host a beanie round from July 25 to 28.

Beanies can also be purchased online through the Mark Hughes Foundation website.