What’s Dress?
which functions it performs? Membrane is thin porous cloth out of hydrophobic polymer polytetrafluorethylene positioned between exterior and internal trimming of the boots. It accommodates about 2 milliards of microscopic pores per square centimeter. The size of 1 pore in lots of times is lower than the scale of water drop, which makes a membrane impenetrable for rain, on the other side, the dimensions of a pore exceeds the size of water molecules, which permits to evaporate moisture outwards. This has its pros and contras: membrane permeability is proscribed, and despite of all efforts, one will definitely sweat in clothes … Read the rest