Two sleeping bags worth lining up side by side. They score within a hair of each other, so it comes down to the details below.
| Mountain Hardwear Lamina 30F | Marmot Wraptor Synthetic 30 | |
|---|---|---|
| GearScore | 80✓ | 78 |
| Comfort rating | 37 °F | 36 °F✓ |
| Weight | 2 lb 2.9 oz✓ | 2 lb 10.8 oz |
| Warmth-to-weight | 3.3 /100g✓ | 2.8 /100g |
| Packed size | 8.1 L✓ | 9.1 L |
| Fill power | n/s | n/s |
| Price | $240 | $199✓ |
| Fill | Synthetic | Synthetic |
| Style | Bag | Bag |
| Shape | Mummy | Mummy |
Highlighted cells mark the better spec: Lamina 30F in blue, Wraptor Synthetic 30 in amber. A blank spec is never counted as a win. A lower comfort rating in °F means a warmer bag, so the warmer bag takes that row. GearScore is the overall rating (0 to 100); re-weight it on the full bag comparison. Prices are current MSRP.
The Mountain Hardwear Lamina 30F and Marmot Wraptor Synthetic 30 take different routes to the same job. They are close enough that this really is about which handful of specs you weight most.
The Lamina 30F is 8 oz lighter, stronger on warmth-to-weight, and more packable (8.1 L vs 9.1 L). The Wraptor Synthetic 30 is warmer (rated 36°F vs 37°F) and $41 cheaper. Their GearScores land within a couple of points (80 vs 78), so neither runs away with it.
Pick the Lamina 30F if you care most about low weight and warmth-to-weight, which makes it the better call for counting grams on long miles. Pick the Wraptor Synthetic 30 if warmth and price matter more to you, or you are focused on colder nights and shoulder-season trips.
The Mountain Hardwear Lamina 30F. It is 8 oz lighter than the Wraptor Synthetic 30.
The Marmot Wraptor Synthetic 30. It is warmer (rated 36°F vs 37°F) than the Lamina 30F.
They are nearly tied at 80 and 78 on the default algorithm, so re-weight the score to your own priorities to break the tie.
It depends on your priorities. Go with the Lamina 30F for low weight, or the Wraptor Synthetic 30 for warmth. The spec table above shows exactly where each wins.