Zip in one of these filled panels to add 8 inches of girth to most sleeping bags with #8 zippers. The Bag Expander by Mountain Hardwear is a great solution for anyone who wants some extra circumference with their sleeping bag.
- Down model uses baffled construction and nylon taffeta fabric.
- Polarguard model uses layered construction with nylon microfiber rip stop shell.
- Double draft tubes cover both zipper connections with insulation.
- Zips in to all bags with #8 YKK zipper and adds 8 inches of girth at shoulder.
- Thermic Micro provides great warmth coupled with loft retention and compressibility.