First the positive: What to expect from Aqua, the seal is basically good. But: Since both eyes have a common air space, that is, the eyes are not individually sealed, the sealing surface is significantly greater than in the above-mentioned separate seal. Due to pressure = force through space, we resp greater contact pressure for equal pressure conditions. Sealing required. And it shows no later than half an hour! Conclusion in your backpack as a substitute for goggles determines a lightweight alternative, but rather unsuitable for swimming.
