The Mountain Hardwear Polarguard 3D Bag Expander gives you more room in your sleeping bag by zipping in Mountain Hardwear sleeping bags. Adding eight full inches of girth, the expander gives you that extra bit of room to breathe, roll over, or warm your morning's clothes while you sleep.
Features:
- Zip-in bag expander adds 8 inches of girth to mummy bags
- Polarguard 3D
- Double draft tubes, each one covering one of the connecting zippers
- Fits bags with full-length #8 YKK zippers
Specifications:
- Weight: 12 oz
- Dimensions: 8 x 77 inches
- Color: Black
