The Macpac Epic 450 SF has a lightweight highly water-resistant/breathable shell and lining, is fully seam taped, and has a short water-resistant zipper. It’s functionally an insulated bivy sack.
By Will Rietveld
Will Rietveld Ph.D, Senior Editor for Gear and Apparel, joined the BPL staff in April 2004. In his former career, Will was a research scientist, project manager, and R&D program administrator. Now retired, he lives in southern Colorado where he takes up a new career of backpacking year-round in the mountains and canyon country of the Southwest. During the summer months Will and his wife Janet are volunteer wilderness rangers in the Weminuche Wilderness. He has been a lightweight backpacker for 52 years and an ultralight backpacker for 13 years.