Here it's all but at the soft-strap belt. This is very comfortable, can be adjusted well and keeps well. In particular, the comfort features you have to but probably buy by following negative property:
Three days ago I wanted to go run, belted harness, connected to mobile, displayed pulse. So far so good. I run about 10 minutes, look at my phone: pulse at 47 beats. The thing reconnected, the overlying chord face slightly moistened, all brought nothing. I then called the Polar Support. They told me to wash the strap times at 30 ° in the washing machine and then try again, the straps are designed for 1-2 year shelf life and therefore excluded as wear items also from the guarantee (Polar is but so nice and let a six months grace apply)!
She then explained to me on my very astonished demand that these things are exposed in direct contact with welding a high load (which I can understand) and that they already had good care, so they last longer (I mean after each run with some soap washed). I would say that something more rigid straps, though should not keep you as comfortable, much longer. Must everyone so be aware if he buys all year and a half for 15Euro a new softstrap belt or then one probably equal to something sensible, which lasts longer. I for one find it quite wrong ... Therefore, despite all the positive points that bad review.
Oh yes: Wash at 30 ° has brought nothing ...