1. La scienza dietro i tessuti impermeabili e traspiranti Per i responsabili dell'approvvigionamento di abbigliamento outdoor, waterproof and breathable ratings are not just numbers on a tech sheet—they are the difference between a product that performs in the field and one that fails after the first downpour. Understanding these ratings starts with grasping the physics of liquid water entry and water vapor transmission. A fabric can be waterproof while still allowing sweat vapor to escape, but achieving both simultaneously...




