For the second prototype of the uEMG bracelet, we decided to use the most promising fasteners (Velcro straps). I bought a number of bike straps for different bicycle sizes (they fit functionally and were stiff enough).

Side note: early in the process of creating the prototype, we brainstormed the problem of bracelet connection wear. The original idea was to sew uEMG to the bracelet with a conductive thread. But there was a risk that during operation, the thread could eventually fray at the connection between the PCB and the fabric and break. Also this design was not suitable for washing. It was necessary to come up with a removable design. 

To do this, I bought several of the smallest sewing snap buttons to use with the bike straps - first to test their conductivity. Later I found buttons of even smaller diameter, which Dmitry soldered to the uEMG board, and I sewed the other half to the bracelet. This was quite problematic, since the fabric was very dense. But after a few finger pricks snap buttons and the conductive zones were ready!

We attached uEMG to the bracelet and the moment of truth has arrived. First tests showed good results. We can work with this! 

But now we can move on to the next stage: look for a good seamstress (or a seamster) and the development of a third - hopefully final - prototype. And then we can sew the first batch of EMG bracelets!