Sioux Falls All Wood | DarkWhere luxury meets everyday lifestyle. The all wood Hennepin Skyline Specs engraved with the South Dakota state outline and 605 were built for those who see the world as an opportunity, and their city as the catalyst. Each individual pair of Skyline Specs are engineered with UV 400 polarized lenses, durable bamboo wooden arms, and flex hinges for an impeccable fit. All orders ship with a hard shell zipper carrying case and microfiber cleaning pouch.