The small frame and sleek sealing provide a secure fit in the eye socket and minimize water resistance. They come with four alternative nose bridges for perfect adaptation to different face and nose shapes. The double strap is easily adjustable at the back of the head and ensures a secure fit, even during starts and turns. With a unique system for the cheekbones, they have additional stability. The goggles are equipped with an anti-fog coating, integrated sun protection with a 400 index, and are PVC-free, which is known to cause irritations.