For Bonnie Boelee, the loud shirts being worn in her office and others around Perth are a sign she's not alone.
Her hearing-impaired daughter Aria is one of the thousands of Australian children who will benefit from Telethon Speech and Hearing's Loud Shirt Day next week.
The six-month-old has a high frequency hearing loss which requires her to wear a hearing aid every day.
She receives regular speech therapy and support in playgroup and takes part in Telethon Speech and Hearing's early intervention program. Ms Boelee said Aria was "up to speed" and coping well with her hearing but finding out about her hearing impairment was tough initially.
"I found it very hard to deal with and I thought I'd be alone," she said.
She said Loud Shirt Day would show other parents they were not the only ones dealing with hearing issues and let them know there was support for them.
Telethon Speech and Hearing is urging West Australians to go to school and work in a loud shirt on Friday next week to raise funds.To register visit www.loudshirtday.com.au .