Outdoor Vitals

Outdoor Vitals Sleeping Bag Liner

We believe everyone should be able to enjoy the outdoors in ultralight & ultra high quality gear. Because of that, we created a totally new business to make sure more people get that chance! We cut out retail mark ups, excessive overhead and other expenses that drive up the costs, so that we can bring you the most affordable outdoor gear available!

Outdoor Vitals Sleeping Bag Liners are made with premium micro polyester fabric to ensure high levels of durability. The fabric wicks away moisture and dries extremely fast in case you sweat during the night or get into the liner wet from crossing a stream! The extra layer of insulation also is great for adding a few degrees of warmth to the bag or allowing you to vent while not completely freezing that section of your body! At a weight of only 8oz it’s well worth packing to keep you cleaner, dryer, warmer and give you that extra comfortable feel of home!

Rectangle: 7.6 oz

Mummy: 7 oz

Sack: .4 oz


Quick drying micro polyester fabric is both comfortable and effective and allows you to easily air out your liner if it gets wet from sweat, condensation, or foul weather.

Moisture wicking capabilities keeps you dry and comfortable even if you sweat or have damp clothing.

Keeps your sleeping bag more clean, reducing the need to wash your sleeping bag. This keeps your sleeping bag in better condition and helps it last longer and insulate more effectively!

Feels like a bed sheet, giving you the comfort of sleeping at home while enjoying the beauty, thrill, and satisfaction of sleeping outdoors on your adventures!


  • Fabric: Premium, quick drying micro Polyester
  • Carry Bag: Included
  • Size: 80" x 32", Mummy Tapered
  • Gender: Unisex
  • Warranty: Outdoor Vitals Performance Promise

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Customer Reviews

Based on 47 reviews
Trent Trulock

Outdoor Vitals Sleeping Bag Liner

Marian Jordan

During the night, I move back to side to back. This bag liner does not have any stretch or give. It will not be going on the Camino with me!

Rob Moffitt

Good value
Seems spot on
Haven’t field tested it yet

Brad Welty
Nice liner

Kept the chill off while night temps were in 40’s.

No value

I did not see any value from this. It was fairly uncomfortable and did not provide me any additional warmth. I just returned from a 7 day trip in the Tetons and would not bring it back on a trek.