Spark Pro 30 vs Trek 30-Degree Down
Spark Pro 30 is the lighter of the two by 240 g (8.5 oz).
Trek 30-Degree Down lists for $80.98 less at the manufacturer's price.
Per ounce carried, Trek 30-Degree Down costs less: $18.43/oz against $32.42/oz.
Weights and prices are the manufacturer’s published figures. The best value in each row is highlighted.
| Spark Pro 30 Sea to Summit | Trek 30-Degree Down Sea to Summit | |
|---|---|---|
| Weight | 16.9 oz | 25.4 oz |
| MSRP | $549.00 | $468.02 |
| Temperature rating | 30°F / -1°C (manufacturer rating, not independently ISO 23537 / EN 13537 tested) | 30°F / -1°C (manufacturer rating, not independently ISO 23537 / EN 13537 tested) |
| Price per ounce | $32.42/oz | $18.43/oz |
| Retailers | 1 | 1 |
Spark Pro 30
The Sea to Summit Spark Pro is the brand's flagship ultralight down bag, built with 900+ fill power goose down and a 10D nylon shell for maximum warmth at minimum weight and pack size. The 30-degree model is a two-season backpacking bag for weight-conscious trips.
Full specs and prices for the Spark Pro 30 →Trek 30-Degree Down
The Sea to Summit Trek is the brand's do-it-all three-season down bag, with 650+ fill power down and a comfort-oriented cut. The 30-degree model balances warmth, weight, and price for backpacking and camping.
Full specs and prices for the Trek 30-Degree Down →