Sea to Summit
Spark 15
$549
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Therm-a-Rest
Score 8.9 / 10
Average of substance, design, and value.
EN 13537 comfort of -10°C at 1.10 kg: 762g of 900-fill hydrophobic down, zoned baffles, toe-warmer pocket and full draft tubes. Premium price matches measurable engineering, not brand markup.
$570 typical
The cost buys 762 g of 900-FP hydrophobic down, a -10°C EN comfort result at 1.10 kg, 20D recycled ripstop, a full anti-draft system, SynergyLink pad straps and a repairable lifetime-warranty product. It is technically premium, but its construction explains it.
Very high loft and improved resistance to condensation-driven loss of loft.
A sensible durability upgrade over 7–10D ultralight shells.
Concentrates insulation where heat loss is greatest.
Compared with 4 other products in edition 1.
This product: 9.6 out of 10
EN comfort -10°C; limit -18°C.
This product: 9.4 out of 10
Toe-asis foot pocket, anti-snag YKK zip, cinch hood, neck and zipper draft tubes, stash pocket and optional pad connectors form a coherent sleep-system design rather than feature clutter.
Cascade Designs states a limited lifetime defect warranty and offers non-warranty repair. Store loose, dry fully after condensation-heavy trips and renew DWR as needed.
cascadedesigns.com
www.livefortheoutdoors.com
762 g 900-FP hydrophobic down at 1,100 g total.
This product: 9.2 out of 10
Differential cut, hood, neck collar and full zipper tubes.
This product: 8.8 out of 10
Hydrophobic down plus DWR 20D shell.
This product: 8.9 out of 10
1,100 g; 19 x 30 cm packed.
This product: 8.7 out of 10
20D ripstop and anti-snag YKK zipper.
This product: 9.2 out of 10
Pad straps, pocket, limited lifetime warranty and repair service.
First Ascent
$336
