Keeps digicam well above water

Have this product bought for Olympus TG-820, so it does not go down on its own.
The test took place yesterday in the swimming pool and the band carries the Olympus well.
Even if the whole thing is pressed underwater dive it on again.

I have the tape then compressed under water and released to simulate a "Langzeitwasserung". The buoyant force has decreased, but was still strong enough to bring the camera to the surface and keep them there.

Also high makes the band a good impression.
Thus, a complete success.