Thames Valley police officers will be issued with woolly hats as they spend hours outside in freezing temperatures.
This is the first time that front line officers in Thames Valley have been allowed to wear woolly hats as part of their uniform.
Pc Lisa Stanhope, who is health and safety lead for the force's federation, requested the new head gear because normal hard hats do not keep officers warm.
She said: "Woolly hats have been issued to officers in specialist roles or firearms because they might need to be out in the open all day.
"But front line officers were never really recognised as requiring that because they are in and out of cars or buildings.
"I hope that this is going to be something that spreads across the country.
More top news
The great-grandmother-of-seven has explained why she won't retire from her fast food job after four decades - despite the 5am shift starts.
Sunshine gives way to cloud and showers
The Metropolitan Police Federation, which set up the official JustGiving site, said it felt a "suitable amount" had been collected.