I have used this product in 20 games and my conclusion is it is not very good.
1) The straps keep coming undone from the pants, so your equipment falls during game play.
2) The straps absorb your sweat and swell up - not very durable and dry out quickly becoming brittle.
3) The adjustable metal clip on both shoulders dig nicely into your neck; brilliant design using metal.. :(
The only good thing I have to say about this product is when it works (doesn't come undone from pants), it feels comfortable and stretches accordingly during game play.