Elastomeric technology gaskets prevents Excess pressure and minimizes goggle ring MarksnUnique clear sight technology lens design splits the lens, instead of bending it, offering precise viewing with zero distortionnLiquid silicone, latex free straps and gaskets for ultimate comfortnEnhanced Speedo fit clips for easy adjustmentnKEY FEATURES Named Best in Class Goggle by Triathlete Magazine 2014 Dual Density TPR Frame uses liquid silicone seals and straps for improved flexibility and comfort Mirrored Lens reduces glare in bright environments The Speedo MDR 2 4 Mirrored Swim Goggle is triathlon tested for Ironmen and women but its perfect for less intense uses too Thats because this goggle which was chosen by Triathlete Magazine as Best in Class makes use of an Outer Eye Fit that sits outside your eye socket This allows it to rest more firmly on your face bones ensuring a secure fit and providing superior comfort for long term wear If you are wearing them for a long time youll appreciate the mirrored finish that helps fight glare in bright environments and the anti fog coating keeping your vision clear in changing temperatures FEATURESMirrored