Here is how these two sleeping bags compare on the numbers. The Wraptor 15 Down takes a modest overall edge, led by warmth, but the Lamina 15F has its own case.
| Marmot Wraptor 15 Down | Mountain Hardwear Lamina 15F | |
|---|---|---|
| GearScore | 82✓ | 80 |
| Comfort rating | 22 °F✓ | 25 °F |
| Weight | 2 lb 13.6 oz✓ | 3 lb 1.1 oz |
| Warmth-to-weight | 3.7 /100g✓ | 3.2 /100g |
| Packed size | 7.9 L✓ | 8.8 L |
| Fill power | 650 FP | n/s |
| Price | n/s | n/s |
| Fill | Down | Synthetic |
| Style | Bag | Bag |
| Shape | Mummy | Mummy |
Highlighted cells mark the better spec: Wraptor 15 Down in blue, Lamina 15F 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 Marmot Wraptor 15 Down against the Mountain Hardwear Lamina 15F is a study in priorities. The Wraptor 15 Down wins on warmth and low weight, and the Lamina 15F pushes back on value.
The Wraptor 15 Down is warmer (rated 22°F vs 25°F), 3 oz lighter, and stronger on warmth-to-weight. Their GearScores land within a couple of points (82 vs 80), so neither runs away with it.
Pick the Wraptor 15 Down if you care most about warmth and low weight, which makes it the better call for colder nights and shoulder-season trips. Pick the Lamina 15F if you would rather save the difference.
The Marmot Wraptor 15 Down. It is warmer (rated 22°F vs 25°F) than the Lamina 15F.
The Marmot Wraptor 15 Down. It is 3 oz lighter than the Lamina 15F.
They are nearly tied at 82 and 80 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 Wraptor 15 Down for warmth, or the Lamina 15F for the price. The spec table above shows exactly where each wins.