Here is a small selection from my large range of sashiko threads that would be good for stitching boro. I have mainly selected threads with more 'traditional' boro thread colours, but of course you can use any colours you like - this page simply has some suggestions to get you started. The thicker sashiko threads are best for more loosely woven fabrics, while fine threads will be easy to use on all kinds of fabrics. Shop for more sashiko threads by type or colour.