Looking at an article and picture in today's Daily Record of a workman modelling a high visibility kilt made by Swedish firm Blaklader.
The kilt in glorious high visibilty yellow will keep the worker safe and certainly noticed on the building site. It has plenty of room to keep the worker's tools safe with lots of pockets and even a loop to hang his hammer.
Perhaps the ladies may not be too happy if this catches on in the building trade as this would be the end of builder's bum.

I am unable to supply a picture but no doubt the Blaklader or Daily Record site would feature this photograph.