Filson's materials are perfect for a variety of applications and now they've brought those rugged textiles to a new sleeping bag in collaboration with another Seattle-based company, Feathered Friends. An exterior of Dry Finish Cover Cloth keeps you protected from the elements and a removable liner that's made from their 8-oz Alaska Guide cotton flannel is ideal when you need to keep warm on those colder evenings. It even has a zipper attached "condor hood" so you have head to toe coverage. 

$855, filson.com