Material: PC + PU + silicone, Product size: lens width 5cm, eye beam distance 2.3cm, lens height 4.5cm. Features: waterproof and anti-fog lenses, easy-to-adjust buckles, one-piece earplugs, freely removable pen holder, one-piece design does not need to bring earplugs and nose clips, rinse with cold water and air dry after use NO LEAKAGE: Ergonomically designed to ensure that it fits all face shapes, high-quality silicone material provides a high degree of comfort and sealing, do not worrying about leaking. NO FOG: The lenses are coated with the newest advanced anti-fog, which can prevent fogging to the maximum extent, does not hurt the eyes, and can provide you with clear and long-distance vision when swimming. EYE PROTECTION: Careful coating on polycarbonate lenses filters sunlight and protects eyes from the stinging rays of the sun. COMFORTABLE AND EASY TO ADJUST: The goggle straps are made of soft high quality silicone, easy to adjust for tightness and easy to release. The super soft silicone nose bridge won't hurt your nose.