Cestro stands out with its focus on Breathability,
waterproofing and moisture permeability

BreathabilityWaterproofMoisture Permeability
Cestro
Conventional
Membranes
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Material Test

Candle Blowing

This demonstrates Cestro's excellent breathability. While conventional products fail to extinguish a candle even under strong airflow due to poor ventilation, Cestro—with superior breathability—puts out the flame instantly.

Air Permeability Comparison

This also highlights Cestro's exceptional air permeability compared to other materials. When air is blown with equal pressure, the side releasing a large number of air bubbles is Cestro.

Rainproofness

This shows Cestro’s rainproof performance. Even water-repellent fabrics eventually soak through under heavy rain, but Cestro keeps feet just as dry and comfortable as on a sunny day—even when it rains.

The core of Cestro is breathability.

Why is breathability so important?
  • It plays a key role in foot health and temperature regulation.
  • Mesh shoes offer good airflow but lack waterproofing.
  • Traditional membranes improve waterproofing but reduce breathability.
Cestro achieves both.
Source: University of Calgary
Shoe Feature % Participants
Shoe Mass 100
Upper Breathability 97
In a study involving 142 experts from 18 countries, 97% of participants identified breathability as the most important feature in footwear.

Cestro has found the perfect balance between rainproofness and breathability

For daily shoes, you only need just above 1,000mmH2O to keep your feet dry in the most of the situations.

Shoes with a high level of waterproof rating can actually reduce breathability, making them stuffy and uncomfortable.

Rain Type Required Waterproof Rating (mmH₂O) Applicable Clothing
Drizzle 50 Normal Clothing
Normal Rain 100~300 Golf Clothing
Thick Rain 500~1,000 Ski Clothing
Heavy Rain 1,000~3,000 Water Sports Clothing
Rain Storm Over 3,000 Mountain Climbing Clothing

Fitting test of Cestro applied shoes

A study was conducted with 10 runners wearing shoes equipped with common membranes, mesh materials, and shoes with Cestro. The experiment observed changes in humidity and temperature after walking for one hour.

Due to Cestro's maximized breathability, even after for an hour, it exhibited similar humidity and temperature levels as shoes with mesh materials.

Tested by
Humidity(%)
Temp(℃)

Breathability Comparison Test for Shoes with Cestro Applied

10g of water was poured onto the sample, and the shoe dryer was activated. The weight was measured every 2 minutes, and the total weight change rate after 10 minutes was checked. After 30 minutes, the drying condition was checked.

  • Cestro applied products decrease by 0.2g per measurement.
  • General waterproof membrane decrease by 0.1g per measurement.
  • After 30 minutes, Cestro showed a reduction of 4.73g, while the general waterproof membrane showed a reduction of 3.71g.
Unit: g
  Cestro General Membrane
Sample weight after adding 10g of water 339.19 342.42
After 2 minutes 338.92 ~ 0.2g 342.33
After 4 minutes 338.72 342.21
After 6 minutes 338.56 ~ 0.2g 342.10
After 8 minutes 338.35 341.90 ~ 0.1g
After 10 minutes 338.16 340.66
After 30 minutes 334.46 338.71