Country of origin: Japan Size: Free Material: eye cup/ polycarbonate. Nose belt/ elastomer, belt/ elastomer Features: anti-fog. UV cut Brand: arena(arena) Excellent fitting arena of racing goggles: Aqua Force Swift. For top swimmers vying for 1/100 seconds. And realize the lens form that can experience of water flow during high-speed swimming. Fin portion which is mounted on the bottom eye cup will smooth flow of water in the front. In addition, firmly secure the effective field of view at the time of the game. Achieve the lens form of aiming face per part the best fit.