40-Degree Quilt vs Spark Pro 30

40-Degree Quilt is the lighter of the two by 18 g (0.6 oz).

40-Degree Quilt lists for $119.00 less at the manufacturer's price.

Per ounce carried, 40-Degree Quilt costs less: $26.39/oz against $32.42/oz.

Weights and prices are the manufacturer’s published figures. The best value in each row is highlighted.

40-Degree Quilt

Hyperlite Mountain Gear

Spark Pro 30

Sea to Summit

Weight
16.3 oz
16.9 oz
MSRP
$430.00
$549.00
Temperature rating
30°F / -1°C (manufacturer rating, not independently ISO 23537 / EN 13537 tested)
Price per ounce
$26.39/oz
$32.42/oz
Retailers
1
1

40-Degree Quilt

One of our two quilt offerings, the 40-Degree Quilt is the perfect ultralight backpacking quilt for three-season temperature ranges, providing even, top-to-bottom warmth. A 7d micro ripstop shell is durable and soft to the touch, and a sewn, closed footbox helps to prevent drafts. Low-profile center push clips and a neck drawcord work together to lock in warmth.

Full specs and prices for the 40-Degree Quilt

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