Threads may fail or have been snagged with use.  Repairs to the stitching helps keep your kilt in good order and looking sharp.  Most suitable for small problem areas, such as:
a 1-5 pleats with weak/stretched/broken stitching
stitching unravelling at a specific location on the kilt
 
Note:  At our discretion, a surcharge may apply for extensive mending, or, after examining the kilt, another service may be recommended to you as being better value.