Yingfa 9402-3 Black/Green Lightning Arrow Sharkskin Men's Jammers -Fina Approved

Yingfa 9402-3 Black/Green Lightning Arrow Sharkskin Men's Competition Swimwear Jammers  is Fina Approved and waterproof. The pores in the fabric are about 20,000 times smaller than a drop of water, however the pores are actually 700 times bigger than a droplet of water vapor, which means perspiration in the form of water vapor can pass out through the membrane. Therefore the fabric is breathable.