But I really wanted the black so am returning and purchasing the color I meant to get in the first place. A surprisingly good product. However, for the longest time, they could not be bought because they were not available. As of today, used, they are selling for the same price and feature half the resolution. Readily available, also gave me 10% off. ill update my review when HP updates their software. 39 sein. Im a bit peeved @ the moment. Im usually between and 7 & 71/2. Breathability or Moisture vapor transmission rate is measured by the rate at which water vapor passes through, in grams of water vapour per square meter of fabric per 24-hour period (g/m2/d)[citation needed], often abbreviated to just "g".