"He occasionally has to change position so the shirt does not touch his skin in that area."
This appears to be the first reported case of skin burns from the overheating of reflective tape in safety clothing, he said.
While the case wasn't life-threatening, it did cause discomfort for a few days. The burn was managed with emollient aloe vera cream and a simple analgesia.
"Retro-reflective tape is used on work clothing to increase the wearer's visibility to others, especially in the dark," Dr Vlad said.
"It usually consists of minute glass beads or prismatic elements encapsulated in a transparent film, which reflect light back towards its source."
He warned that workplaces requiring safety garments that include reflective tape should ensure they're not worn in very hot and sunny conditions — especially if the strip is in direct contact with the skin.
"Manufacturers should consider designing shirts that decrease direct contact between retro-reflective tape and skin, potentially by increasing the number or thickness of cloth layers under it," Dr Vlad said.