Transpirella Patched -

Over time, the smart polymer would “forget” its closed position, leaving ventilation slits permanently slightly open—ruining waterproofing. The patch: Transpirella Patched introduces a cross-linked polymer network with a higher glass transition temperature (Tg). In plain English: the strips now snap back to a flat, sealed state twice as fast and retain 98% of their original curvature memory after 500 actuation cycles.