Waterproofness in Technical Sailing Gear: How It Works and What It Depends On

At sea, water is a constant presence. Heavy rain, repeated splashes, and contact with wet surfaces challenge sailors' comfort.

If a clothing item doesn’t protect you against water: 

• the body gets wet and cools faster.  
• if the body is wet, heat loss increases.  
• performance tends to decrease.  

That’s why waterproofness isn’t an added bonus, but a fundamental element for getting the most out of every regatta or day at sea. 

Like other technical features, waterproofing results from a combination of factors, including: 

• fabric structure  
• technical membranes  
• surface treatments  
• sealing systems  

Each technical component prevents water from entering the gear, even during heavy rainfall. This balance determines the real effectiveness of the gear at sea.

A waterproof garment isn’t enough on its own. If it’s not breathable: 

• moisture gets trapped inside 
• the body cools down 

That’s why waterproofing must work alongside features like breathability and thermal protection. It's the integration of these elements that guarantees comfort and performance, even during high-intensity activities.

👉 Discover the difference between waterproof and water-resistant fabrics and how they impact performance