Since, i reported issues wearing the originally made strap-on reactor. I decided to sacrifice an old Tshirt and mount the 3 parts i.e.

•  The control leaf
• The battery 
• PCB 

On the tshirt itself. I used the trusted "Velcro" to do so. I am not that good at stitching but after a few needle pricks i was able to stitch the Velcro on the Tshirt.

Below is the picture of all the 3 parts secured with velcro on the tshirt