Size 38 in UK clothes can vary depending on the brand and style of clothing. However, according to the search results, here are some possible conversions:

• EU 38 - UK 10 fits Waist 69-72cm and Bust 88-92cm
• UK size 10
• American size 6
• Womens size 4 or 6

It's important to note that size conversion can vary depending on the brand and style of clothing, so it's always best to check the specific brand's size chart for the most accurate conversion.