The soft silicone seal, which has a long lifespan, offers maximum comfort. It comes with four interchangeable nose bridges for perfect adaptation to different shapes, faces, and noses. The double strap is easily adjustable at the back of the head and ensures a secure fit, even during starts and turns in the pool. The goggles are equipped with an anti-fog coating, integrated sun protection with a 400 index, and are free of PVC material.