It achieves both waterproof and breathable functions through the hydrophilic and hydrophobic properties of its molecular chains. Its hydrophobic hard segments block liquid water penetration, while its hydrophilic soft segments allow water vapor to pass through. The surface has no microporous structure.TPU waterproof and breathable membranes are primarily made of high-molecular-weight elastomer TPU, which boasts excellent elasticity and high strength. Despite its extremely thin thickness (0.012~0.025mm), it exhibits unparalleled physical properties in terms of waterproofing (withstanding water pressure exceeding 10,000 mmH2O).

Furthermore, advanced technology incorporates hydrophilic groups into the material, giving the membrane not only high waterproofing but also excellent breathability (human sweat can freely penetrate the membrane). This functional breakthrough, combined with advanced textile bonding techniques, significantly enhances the added value of textiles and is now widely used in snowwear, windbreakers, winter jackets, gloves, hats, and shoes. In addition, its excellent weather resistance, environmental friendliness, non-toxicity, recyclability, and biodegradability make TPU waterproof and breathable membranes a mainstream material for the 21st century.