Sonic™ Down Mummy Sleeping Bag (-20F / -29C) Sizes:REG Weight: 74 g

Weight: 74 g

Dimensions 6

Full functionality: Ultra-clear polyurethane windows allow full functionality of touchscreens

The Helle Nying has been awarded for its unique and classic design

PRO-TIP: Extremely dull blades should be re-profiled in one of the carbide slots before using the ceramic benchstone

Sonic™ Down Mummy Sleeping Bag (-20F / -29C) Sizes:REG Weight: 74 gSonic is built to be the only bag you need from 20F to 40F. The Backpacker Editors Choice award winning big mountain bag offers exceptional warmth and tuneability with a reduced environmental impact. This bag features our next generation Thermo Gill vents, with a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows fine tuning of comfort from within. Sonics chevron baffle construction better