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Best synthetic backup

Marmot Trestles Elite Eco 30

Marmot · Lower mid · Heavier than down

Synthetic fill that still insulates when it is damp, at the cost of pack space.

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If your trips are dry alpine, down is lighter. If your trips are coastal fog, boat spray, or river country, synthetic is the rational fill. This is a 30°F-class bag, so it is a summer and mild-fall tool, not a frost bag for cold sleepers. The bulk is the price of the insurance.

Who should buy it. Campers who cannot promise a dry bag.

Best for. Wet climates and bags that may get damp

Standout limitation. Bulk in the pack

A synthetic mummy bag lofted on a pad inside a tent

Specs

Rating class
30°F
Fill
Synthetic
Use
Mild and wet

Pros

  • Works when damp
  • Easier care
  • Lower price than premium down

Cons

  • Packs larger
  • Heavier for the rating

Not sold on Amazon US.

Closest on Amazon: Marmot Trestles 30 Sleeping Bag. The previous generation of the same Marmot Trestles 30 synthetic bag, with the same 30°F rating.

See Marmot Trestles 30 on Amazon

Check current price on the listing.

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