These clear swim goggles feature 4 interchangeable nose pieces to fit adults with different head shapes and sizes. The ergonomic 3D sealing design with soft silicone provides a leakproof, comfortable fit. The 180degree(s) wide-view curved Pc lenses include Zsac+ anti-fog coating and Uv 400 protection with high visual light transmittance for clear indoor swimming. Impact-resistant lenses and premium silicone withstand over 7.5kgf tensile force for lasting durability. Easy nose piece changes and adjustable head strap ensure convenient customization. Weight: 0.18 pounds.