Zoggs 315648-801 Predator Flex S/M - Mirrored Swim Goggles (Silver-Red/Smoke) 100% silicone Mirrored lenses protect your eyes from the sun's glare Skeleton frame with silicone injected seals is light and flexes to your Face Nose bridge retains shape and will not spread when head strap is tightened Curved lens technology provides expanded 180 degree vision Adult size small frame 4 Flexpoint technology, frame flexes in 4 key areas Mirrored lenses protect your eyes in open water swimming Quick adjust by pulling the two straps to tighten and lift lever to loosen Lenses are coated with Fogbuster anti-fog clear vision