HyperLamina Spark
Best lightweight synthetic bag for backpackers in damp climates.
A high-performance synthetic bag that ditches traditional stitching for welded seams, significantly boosting warmth while cutting weight. It is a smart, efficient choice for weight-conscious backpackers who want the reliability of synthetic insulation without the bulk.
$116.60
More Lamina options
Who it's for
- Backpackers seeking reliable warmth in damp or variable conditions
- Ounces-counting hikers prioritizing pack space and weight savings
- Alpine climbers needing a resilient bag for rugged environments
Who should skip it
- Side sleepers or restless campers who prefer extra wiggle room
- Warm sleepers who require versatile ventilation options
- Long-term investors looking for a bag to last decades
Performance breakdown
Warmth-to-weight ratio
Synthetic insulation that punches well above its weight class.
Packability
Compresses surprisingly small for a synthetic bag of this caliber.
Moisture resistance
Thermal.Q insulation stays warm even when damp or humid.
Zipper performance
Center-zip design makes entry and exit remarkably fluid.
Interior comfort
Mummy cut is efficient but feels slightly snug for broad sleepers.
Durability
Rugged shell fabric withstands rough backcountry use without issue.
What Reviewers Say
Still have a question?
Ask Metto anything about the HyperLamina Spark before you decide.
