TPU water-proof insert is characterized by the soft texture,good elasticity,permanent tension and strong low-temp.resistance 1.The property and Function of TPU membrane:       The TPU membrane is a high-tech products of the world,which is characterized by the soft texture,good elasticity,permanent tension and strong low-temp.resistance;The above-mentioned properties will still be maintained even below-48,otherwise it has the functions of wind-proof & rain-proof,but the water vapors can penetrate,e.g.: when the human body is perspiring,the sweat can be completely passed through,so that the human's skin can obtain the natural breath.

      Most of the TPU membranes are used in the skiing garments,skiing gloves and the stuffed layer of hats,in addition,it also has the other usages.

2.The principle of water-proof and ventilation of TPU membrane:       The TPU membrane has a super density,cellular shaped molecular structure,which contains as many as 9 trillion microspores in a mere 1 sq.inch.The diameter of such hole is only 0.1-0.3μ,while that of water is 100-300μ,that si 1000 times larger than the microspore,so the water molecular can't come through it,but the diameter of water vapor is only 0.00004μ,therefore,the water vapor(or sweat vapor)can come out easily.

Waterproof & Breathable glove covers