Try the lightest version of Flex Spex yet, the Flex Spex II, featuring a CNC cut and polished acetate frame. *Case sold separately*.
 
Flex Spex are built with high quality parts and precise workmanship. We use light weight, scratch resistant CR39 lenses; stainless steel clips; copper wrapped stainless steel flex line; and powerful neodymium magnets. Reading glass power is measured in diopters.