Sierra Designs' down sleeping bag expander adds 6-10" of extra girth to any women's Sierra Design sleeping bag.Stretch Addition will fit any Sierra Design Bag utilizing a YKK number 8 zipper.

• Size: 58x10"
• Stuff size: 13x6", but able to pack much smaller when required
• Added girth: 6-10"
• Weight: 10 oz.
• Fabric: 100% polyester shell and lining
• Fill weight: 4 oz./600 fill weight goose down or polyester (tag does not say)