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 Duke of Cambridge has condemned the "violent and apparently targeted murder" of the head of a wildlife conservation foundation.
Experts are warning that millions of middle-aged people are putting their health at risk due to a severe lack of exercise.
Teenagers across Wales, Northern Ireland and England are to get their results, with much of the focus on the effect of reforms in England.