Top critical review
2 of 2 people found this helpful
Not the right one but...
on 6 April 2013
First, my chest is 41 inches and M size strap fits perfectly with plenty (6 inches) of adjustment either way. It is for Polar T61, T31 and T31 coded transmitters. I think that mine must be very old as there are no ID markings on it anywhere. For a few quid I took a punt. It didn't fit. However I cut the stitching at one end and swopped the plastic ends over with my old ones and sowed it back up again. Took 5 minutes and am very happy now it all fits and is proper comfy.