Two sleeping pads worth lining up side by side. The Flyer leans on low weight while the Trail Pro answers with warmth, so the pick comes down to which you value.
| NEMO Flyer | Therm-a-Rest Trail Pro | |
|---|---|---|
| GearScore | 77✓ | 70 |
| Warmth (R-value) | 4.2 R | 4.4 R✓ |
| Weight | 21.0 oz✓ | 30.0 oz |
| Warmth-to-weight | 0.71 R/100g✓ | 0.52 R/100g |
| Packed size | 5.43 L✓ | 10.99 L |
| Thickness | 2.0 in | 3.0 in✓ |
| Durability | 12 /100 | 65 /100✓ |
| Price | $140✓ | $160 |
| Features | 1Repair kit included | 1Two-way valve |
| Type | Self-inflating | Self-inflating |
| Shape | Mummy | Rectangular |
Highlighted cells mark the better spec: Flyer in blue, Trail Pro in amber. A blank spec is never counted as a win. GearScore is the rating for the Overall use-case (0 to 100). Pick another above to re-score. Prices are current MSRP.
The NEMO Flyer and Therm-a-Rest Trail Pro take different routes to the same job. The Flyer wins on low weight and warmth-to-weight, and the Trail Pro pushes back on warmth and cushion.
The Flyer is 9 oz lighter, stronger on warmth-to-weight, and more packable (5.4 L vs 11 L). The Trail Pro is warmer (R 4.4 vs R 4.2), thicker for more cushion, and more durable. On the default GearScore the Flyer leads 77 to 70.
Pick the Flyer 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 Trail Pro if warmth and cushion matter more to you, or you are focused on colder nights and shoulder-season trips.
The NEMO Flyer. It is 9 oz lighter than the Trail Pro.
The Therm-a-Rest Trail Pro. It is warmer (R 4.4 vs R 4.2) than the Flyer.
The NEMO Flyer, 77 to 70 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the Flyer for low weight, or the Trail Pro for warmth. The spec table above shows exactly where each wins.