Our fabric name is "Zen-tex"(=ePTFE),same material such as Gore-Tex.(Breathable/waterproof/windproof/DWR)=================================================Zen-Tex membrane is manufactured by using ePTFE which is the most ideal material available.the ePTFE is an accumulated technology of Sumitomo Electric Company,one of the biggest companies in Japan for the last 40 years.(ten billion microscopic pores per square inch inthe Zen-Tex membrane have very equal and stable structures.)The pores are ten thousand times smaller than a wate drop and several hundred times larger than a molecule of water vapor,allowing perspiration to be vented easily to the outside of the product.1.waterproof,at least 30,000mmH2O2.Breathable,30,000gr/M2/24hrs.3.Windproof4.Airpermeability,0.1cc/cm2/Sec.5.Durable Water Repellent6.Environmental Free*Fabric Applications(Outer wear,foot wear,gloves and caps(hats):Alpine,Mountaineering,backpacking,travel,ski,snowboard,fishing,motor cycling,hunting,golf,sports,inline skating,MTB,city wear and other special purposes as military,fire fighter,hospital and uniforms etc.)