Two sleeping bags worth lining up side by side. The Lamina 15F leans on low weight while the Trestles Elite Eco 20 answers with warmth, so the pick comes down to which you value.
| Mountain Hardwear Lamina 15F | Marmot Trestles Elite Eco 20 | |
|---|---|---|
| GearScore | 80✓ | 78 |
| Comfort rating | 25 °F | 24 °F✓ |
| Weight | 3 lb 1.1 oz✓ | 3 lb 8.4 oz |
| Warmth-to-weight | 3.2 /100g✓ | 2.9 /100g |
| Packed size | 8.8 L✓ | 9.1 L |
| Fill power | n/s | n/s |
| Price | n/s | $179 |
| Fill | Synthetic | Synthetic |
| Style | Bag | Bag |
| Shape | Mummy | Mummy |
Highlighted cells mark the better spec: Lamina 15F in blue, Trestles Elite Eco 20 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 15F and Marmot Trestles Elite Eco 20 take different routes to the same job. The Lamina 15F wins on low weight and warmth-to-weight, and the Trestles Elite Eco 20 pushes back on warmth.
The Lamina 15F is 7 oz lighter, stronger on warmth-to-weight, and a touch more packable. The Trestles Elite Eco 20 is warmer (rated 24°F vs 25°F). On the default GearScore the Lamina 15F leads 80 to 78.
Pick the Lamina 15F 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 Trestles Elite Eco 20 if warmth matter more to you, or you are focused on colder nights and shoulder-season trips.
The Mountain Hardwear Lamina 15F. It is 7 oz lighter than the Trestles Elite Eco 20.
The Marmot Trestles Elite Eco 20. It is warmer (rated 24°F vs 25°F) than the Lamina 15F.
The Mountain Hardwear Lamina 15F, 80 to 78 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the Lamina 15F for low weight, or the Trestles Elite Eco 20 for warmth. The spec table above shows exactly where each wins.