Reactor Extreme Sleeping Bag Liner

Bump up your sleeping bag's heat coefficient.

Bump up your sleeping bag's heat coefficient with this liner from Sea to Summit. It's specifically designed for their line of sleeping bags, but will be right at home in the one in your closet, too. It adds less than a pound of weight to your pack, and adds up to 25°F of extra warmth for those extra chilly nights in the tent.

  • Length: 6'10"
  • Packed dimensions: 6.5" x 4.5"
  • 14 oz
  • Increases warmth by 25°F
{{ AssociateAccountModalCtrl.data.message }}
{{ AssociateAccountModalCtrl.data.paragraph }}
{{ AssociateAccountModalCtrl.data.error }}

Don't already have a Bespoke Post account?

Welcome
We've created a brand new Bespoke Post account for you, using the email address: {{ ::$ctrl.userEmail }}
Welcome back
You have an account with us, but haven't set a password yet. Reset your password to log-in.
{{ $ctrl.email }}
Email sent
The {{ ::$ctrl.product.name }} -
For a limited time, get over 20% off one of our favorites (plus, free returns).