The Sleeping Bag Expansion Baffle is a great piece of kit if you are extending the useable range of your sleeping bag by wearing more clothes, its not uncommon to wear a down jacket inside your sleeping bag when its cold - expanding the internal volume in this way gives you ore scope.
Mountain Equipment says:
A lightweight expansion baffle providing greater internal space to our down sleeping bags.
Mountain Equipment's Helium Sleeping Bag Expansion Baffle is a great innovation, Helium bags are one of Mountain Equipment's premium backpacking ranges and as such are cut for warmth rather than internal volume - with this expansion baffle you can create a bit more space easily. If you are using your Helium bag in colder conditions and want to wear more clothing the baffle may be a great option.
- Reviewed by Ultralight Outdoor Gear
- Expands any Helium sleeping bag by 13 cm / 5 inch width*
- 2 YKK® zips allow baffle to zip into existing sleeping bag
- Supplied with lightweight stuff-sack
- *Not compatible with Helium Solo **Compatible with all our sleeping bags with 140cm zips
- Weight: 128g
Material & Construction
- 100% recycled HELIUM 20D outer shell is very light and highly breathable with PFC free DWR
- 30g of 90-10 Pure Duck Down with a minimum fill power of 700
- 100% recycled Supersoft 20D lining fabric with PFC free DWR