This invention aims to improve the performance of umbrellas, tents, canopies, and other outdoor structures that must keep water out while withstanding a high wind load. The technology leverages multiple-aperture air valves, with various areas of flexibility, that seal when met with rain but open to allow air to flow in. By doing so, this decreases the wind load experienced by a structure while maintaining water protection. This reduces the overall stress a structure experiences, reducing occurrences like umbrella inversions. Furthermore, this technology could also be incorporated into wearable raingear like ponchos, raincoats, and wide-brim hats. By allowing controlled airflow through the structure without compromising its protective function, this innovation improves usability and longevity without requiring additional mechanical components or external power. Background: Items designed to protect from rain and wind such as tents, canopies, umbrellas, and wearable raingear like ponchos often have issues of instability due to the high wind loads they experience. Designing ventilation systems for such items while maintaining their water resistance can be challenging. While some solutions, such as vents or reinforced frames, have been implemented, they either compromise water resistance or add complexity and cost to production. This technology introduces a solution to reducing wind resistance while maintaining protection against rainwater for a wide range of structures and wearables. Its ease of integration into existing manufacturing processes and cost-efficiency make it a practical and scalable solution for a wide range of applications. Applications:
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