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How Do Swimsuits Reduce Drag?

Published in Swimsuit Technology 2 mins read

Swimsuits, particularly those designed for competitive swimming, reduce drag by employing advanced materials and construction techniques that minimize water resistance and create a more streamlined profile for the swimmer.

Water resistance, or drag, is a major factor affecting a swimmer's speed. By reducing the drag created by the suit itself, swimmers can move through the water more efficiently.

Key Mechanisms for Drag Reduction

Modern swimsuits achieve drag reduction through several key design features:

  • Advanced Fabric Technology: Many high-performance swimsuits are made from specialized fabrics that are both lightweight and feature water-repellent properties. This is crucial as it decreases water saturation, preventing the suit from absorbing water and becoming heavy. Additionally, these fabrics are engineered to create a frictionless surface against the water, reducing the friction drag a swimmer experiences as they move.
  • Seamless Construction: The way a swimsuit is put together significantly impacts drag. Advanced suits are often almost completely seamless. Traditional seams can cause turbulence in the water, increasing drag. By minimizing or eliminating seams, the suit presents a much smoother surface, which directly helps to decrease drag. The seamless design also contributes to allowing the suits to have a tighter fit, further enhancing the streamlined body shape and reducing form drag.

By combining innovative, water-repellent fabrics that reduce water saturation and surface friction with streamlined, seamless construction that minimizes turbulence and allows for a tight fit, modern swimsuits effectively reduce the total drag force acting on a swimmer, allowing for improved performance.

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