The Humboldt jacket is much more than a basic liner jacket.  The fabric is a DWR coated Cordura ripstop nylon mated to a nylon taffeta with 6oz Primaloft insulation sandwiched between them. The fabric was quilted in Los Angeles and the production was done in NYC.

The Humboldt jacket is water and wind resistant, cut to fit as a liner or to be worn by itself.