Speedo Caliber Swim Mask Trademarked Elastomeric seals with grooves expand to the contours of your face to maximize comfort and minimize goggle ring marks Trademarked Clearsight technology prevents eye fatigue offering extended peripheral vision with no lens distortion Dual density TPR frame for superior flexibility with comfortable liquid silicone seals and straps Speed fit clips for easy quick adjustment Mask outer eye fit with UV protection, anti fog lenses and 100% latex free Adjust TPR frame around the nose for better fit.