Therm-a-Rest Synergy Sleeping Bag Liner Bindings One size fits most –

One size fits most – elastic adjustment

55mm rubber at the thickest part

the fabric provides excellent thermoregulation for optimal performance

the Helio Active Pants feature innovative Gore-Tex® Active 3-layer technology

loose talus and rugged descents

Therm-a-Rest Synergy Sleeping Bag Liner Bindings One size fits most –The soft and cozy Synergy Sleeping Bag Liner adds warmth, comfort and years of life to any sleeping bag. Contributing up to 5F 3C degrees of warmth to your sleeping system, the soft, stretch knit polyester also serves as a protective barrier to your expensive sleeping bags materials, absorbing the sweat and oils that would otherwise go directly into your bag and decrease its loft. Now, instead of washing and drying your entire bag or allowing that