Shorts and t-shirts are now being given to people arrested and held in police cells to help provide more dignity to vulnerable detainees.
The two-piece sets replace smock-type clothing that was offered but considered to be undignified for those at risk of self harm.
The new clothing issued in 2018/19 to vulnerable detainees is one of the changes imposed after volunteers inspected custody suites in Surrey.
Other improvements to how people are treated in police cells include making sure embassies have been notified of the arrest of a foreign national and more female detainees being offered sanitary products.
Surrey is said to be “leading nationally” with its treatment of females in custody with more than 80% of those asked saying they were offered sanitary products by a female officer.
Independent Custody Visiting is carried out by volunteers to check on the welfare of detainees and the changes made were highlighted in the ICV annual report.
Surrey Police has three custody suites in Guildford, Staines and Salfords with 15 spare cells in Woking.