Sea to Summit Spark Pro Down Sleeping Bag 1

Sea to Summit Spark Pro Down Sleeping Bag 2

Sea to Summit Spark Pro Down Sleeping Bag 3

Sea to Summit Spark Pro Down Sleeping Bag 4

Sea to Summit Spark Pro Down Sleeping Bag 5

Sea to Summit Spark Pro Down Sleeping Bag 6

Sea to Summit Spark Pro Down Sleeping Bag 7

Sea to Summit Spark Pro Down Sleeping Bag 8

Sea to Summit Spark Pro Down Sleeping Bag 9

Sea to Summit Spark Pro Down Sleeping Bag

Sea to Summit

$946.00

Temp Rating:

-1C|30F -9C|15F

Size:

Regular Long

Variant

1% for the Planet We'll donate $9.46 from this purchase to environmental charities.

Features

RDS-certified, 900+ fillpower goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance
Featherweight 10D nylon shell with non-PFC DWR, and a highly breathable 10D nylon liner for enhanced comfort
Technical hood, anatomical footbox and an ergonomic mummy shape - ultralight doesn't have to mean ultratight
Free Flow Zip System: YKK #5 side zipper with zipper plow for reliable, snag-free operation. YKK #3 footbox and shoulder zipper for minimal additional weight
Baffle construction specific for each use: Hybrid box baffles in torso/sewn through in leg area (-1°C|30°F) or full box baffles for maximum warmth (-9°C|15°F)
Front draft collar is fitted around the neck and oversized at the shoulders to retain warmth
Sea to Summit Guarantee is offered for the Lifetime of this product

Specifications

WEIGHT

-1C|30F R: 619g
-1C|30F L: 672g
-9C|15F R: 784g
-9C|15F L: 861g

CERTIFICATION

RDS - 883003

MATERIAL

Shell: 100% Nylon
Lining: 100% Nylon
Fill: 90/10 Goose Down
Stuff Sack: 100% Nylon - excluding trims

INTERNAL CHEST CIRCUMFERENCE

R: 155cm
L: 165cm

INTERNAL HIP CIRCUMFERENCE

R: 135cm
L: 145cm

INTERNAL FOOT CIRCUMFERENCE

R: 102cm
L: 112cm

PACKED DIMENSIONS

-1C|30F R: 13.5 x 19.5 x 34cm
-1C|30F L: 13.5 x 19.5 x 34cm
-9C|15F R: 15.5 x 22.5 x 41cm
-9C|15F L: 15.5 x 22.5 x 41cm

RECOMMENDED USER HEIGHT

R: 185cm
L: 198cm

INSULATION TYPE

RDS certified, 900+ fillpower goose down with a non-PFC Ultra-Dry Down treatment

COMPRESSION SACK VOLUME/ASTM F1853-11 COMPRESSED VOLUME

-1C|30F R: 8L/5.3L
-1C|30F L: 8L/5.5L
-9C|15F R: 13L/7L
-9C|15F L: 13L/7.7L

Sea to Summit tests all of its sleeping bags according to the ISO 23537 standard. This test presupposes that a sleeper is

dressed in expedition-weight base layers
wearing an insulated cap
using a sleeping mat with an R-Value of 5+

The ISO test produces three temperature ratings, two of which Sea to Summit publishes as above in these specifications.

Sea to Summit publishes the temperature ratings provided by the ISO-certified lab - the figures are not rounded down or altered.
this rating is a guideline, not a guarantee

Factors that can affect performance include air humidity and how well the down is distributed in the baffles (the latter involves vigorously shaking the bag prior to use)

Other factors that affect performance is the physical condition of the sleeper, levels of hydration and fatique.

Sea to Summit Spark Pro Down Sleeping Bag

The Spark Pro sleeping bag is the ultimate combination of comfort, functionality, and lightweight design. Their down material uses the highest quality 900+ fillpower RDS-certified goose down and is treated with non-PFC Ultra-Dry treatment. Made with breathable 10D fabrics, it is the perfect balance of warmth and ventilation. The Free-Flow Zip system allows for easy ventilation and the option to use the bag as a flat quilt. Get cozy and share the comfort with your companion by zipping it to a Women's Spark.

Sea to Summit Spark Pro Down Sleeping Bag

$946.00

Spark Pro Delivered in Freezing Alpine Conditions

I recently put the Sea to Summit Spark Pro Down Sleeping Bag through its paces during a VRA NSW Special Operations Rescue Unit alpine search and rescue exercise, where overnight temperatures dropped below freezing.

The Spark Pro performed exceptionally well. Despite the frozen conditions, it kept me warm and comfortable throughout the night, allowing me to get quality rest before another demanding day in the field. When you’re operating in a search and rescue environment, reliable sleep isn’t just about comfort—it’s about maintaining performance, decision-making, and safety.

The bag packs down incredibly small, saving valuable space in my pack, while still providing impressive warmth for its weight. For anyone undertaking alpine hiking, remote expeditions, or search and rescue operations where every gram counts, the Spark Pro is an outstanding piece of equipment.

A big thank you to Past Outdoors for the excellent service and expert advice. It’s great to deal with a team that understands the demands of serious outdoor users and stocks equipment you can trust when conditions are at their worst.

Cosy!

Packs down so small in my bag and does everything I need it to. Warm and comfy!

Features I didn’t know I needed!

The Spark Pro -1 was the perfect bag for a recent shoulder season trip to NZ where low temps were expected but the grams mattered

After tossing up between this and a quilt; I went for the sleeping bag as it was rated to lowered temps, lighter and there is no stuffing around with straps and clips and drafts. The free flow zip system worked a treat as I was able to sit up and do admin in the tent without getting cold.

Would absolutely recommend this over a quilt any day!

This zip system was a game changer!!

Spark pro -9

Excellent ultra light bag, comfortable and warm enough for most seasons

Ideal for lightweight 3 season adventures

Ideal for weight reduction in the summer/shoulder seasons.
Just be careful when removing white tags about new condition down - as I removed them i noticed they were damaging the fabric - ise scissors rather than pulling them by hand. Hopefully it doesn’t prove an issue with longevity.