Spy optic klutch goggle happy lensspy optics klutch goggles are made of flexible polyurethane and have an anti fog scratch resistant lexan lens with posts these goggles are compatible with most helmets have a silicone ribbed strap to keep your goggles in place and come with a free bonus lens maximise suns good raysthese klutch goggles come with spys happy lens a colour and contrast enhancing lens technology that provides 100 uv protection whilst maximising the transmission of the suns