Waterproof & Breathable Valve – The Smart Way to Stay Dry and Comfortable

What Is It?.

A waterproof and breathable valve is a tiny but mighty piece of engineering designed to solve a big problem: keeping moisture out while letting air flow in. Think of it as a "smart door" for your gear—whether it's a rain jacket, hiking boot, or high-tech backpack. It blocks water (like rain or splashes) but allows sweat vapor to escape, so you stay dry from both the outside and the inside.

Why Do You Need It?

Ever been stuck in a downpour with a "waterproof" jacket that turned into a sauna? Or worn boots that kept rain out but left your feet sweaty? Traditional waterproof materials often trap heat and humidity, making you feel clammy. This valve fixes that by:
Blocking water (even in heavy rain or snow).

Releasing sweat vapor (no more sticky, damp feeling).
Lightweight & silent (unlike noisy zippered vents).

key Features

100% Waterproof – Tested under hydrostatic pressure (e.g., 10,000mm+ rating).

KingKung Technology Group.,LTD, the global leading supply-chain for

Footwear industry, which base on the well-know industry province-FUJIAN, ZHEJIANG and GUANGDONG.

With 30 years of footwear making experience, now we can provide the project proposal, machines, molds and materials for customers with senior technicians taking care of installation, operation and after-sale service.

Right now, we are specialized in The Turn-key Project on

Sport, leather and canvas shoe factory

EVA ,PVC slipper, sandal and outsole factory

PU,PVC,RB directly injection shoe factory

Shoe Materials, Accessories One-stop solution

Rubber Plastic Machinery, solution for eva,pvc and rubber factory

Insist on the Innovation, Efficiency,Quality,Responsibily,Credibility and Service Core Value, Kingkung's products have been highly appreciated by clients in the footwear industries. Our products have been selling well in South America, Europe, the Middle East, Africa and Southeast Asia Countries.

In the past 10 years, we have kept the pace with the trend of international footwear and plastic industries, constantly developing new products to meet our customers' needs and create mutual benefit.

In the future, Kingkung will continue to focus on customers demand, keep developing and create values for you!