The Wenger Sierra is a retired, pocket-sized 85mm Swiss Army knife with locking blade and five layers of tools. It was part of the Backpacker series (most named after mountain ranges).
NOTE: According to the Wenger catalogs, the Sierra has a corkscrew and the similar but less common Outdoorsman has a Phillips screwdriver. However, we have one boxed knive with a corkscrew that is labeled Outdoorsman, so there may be ambiguity in their naming.