I have a size 24 inch waist and it works so much better than the size M-XXL that came with the watch

Perfect size, the size that came with my polar was too big

I had been apprehensive about ordering the XSmall/Small size, but the next size up sounded far too large.

Comfortable and perfectly sized for smaller framed people

It's is the right size and is working great

I wish this size might have been available in other than black.

The size was correct, but the transmitter would not stay on for more than a few seconds

The small size was perfect and works awesome.

The small size was perfect and works awesome.

Comfortable - make sure you get proper size

Perfect size, works absolutely well with my POLAR FT60Good material and fits very well, I am happy with the product.

This size was perfect!

I have a smaller figure, so this size was great.

Now this size is perfect and it doesnt fall off at all!

Good sizing too.

perfict fit for a medium size build like me.

the x/s was def worth spending the extra money