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Sea to Summit Traveller II Down Sleeping Bag (-1C)

Sea to Summit Traveller II Down Sleeping Bag (-1C)
$314.25 - $321.75
$419.00 - $429.00
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This aptly named sleeping bag and down blanket is the traveler's best friend. Whether you are on a summer bike tour, or a hut trip, or couch surfing, or simply stuck at an airport or ferry terminal, the Traveller unpacks from an almost impossibly small compression sack to reveal a rectangular sleeping bag which can also unzip to form a quilt.

Two different fill weights of 750+ loft RDS-certified ULTRADRY Down™ are available: both models feature a drawcord foot box which cinches tight for warmth or opens for ventilation.

Lighter than some sleeping bag liners and just as compact

Weight: 645g / 1.43lbs
Fill: 750+ loft RDS-certified ULTRADRY Down™

ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down certified Responsible Down Standard (RDS)

Baffle Construction: Traveller 50°F has sewn-through construction; 30°F has full horizontal baffles.

Form a double sleeping bag by using the YKK® #3 zipper to zip two Travellers to be zipped together.

Cut with a slight taper to save weight and maximize thermal performance.

Shoulder and foot drawcords

Includes lightweight Ultra-Sil™ compression bag and a storage cell


-1C Regular
-1C Large
Bag Series 
Traveller 2
Traveller 2
Bag Weight
1lb 6.8oz / 645g
1lb 10.6oz / 755g
Compressed Volume
4.5 L
5.8 L
Compression Sack
XS - 6L to 2L
S - 10L to 3.3L
Fill Weight
12.3oz / 350g
14.8oz / 420g
Fits up to 
6 ft / 183 cm
6 ft 4 in / 192 cm
Season Rating
2.5 Season
2.5 Season
-1Cº (Lower Limit)
-1Cº ( Lower Limit)
Womens Temperature
5ºC (Comfort)
5ºC (Comfort Limit)



Be used in cooler temperatures?

Only with the addition of a thermal (Reactor) liner. The 30°F Traveller is rated for a male sleeper to 30 degrees Fahrenheit, and a Reactor would take this down to a couple of degrees below freezing. But realistically – there are much better choices for colder conditions.


Zip to another Traveller?

Yes. All Travellers have left zippers; to couple two together simply turn one of the two inside out.


Be used as a sleeping bag liner?

Yes. You could use the Traveller 30°F, or even the 50°F to boost the performance of a bag for cold-weather use. Adding one of these to a 20°F / -5°C bag makes more sense for most users than buying a “10°F / -15°C” bag for only occasional winter use.


Sea to Summit - UltraDry Down

Part Numbers

Option UPC MPN Store SKU
Regular 9327868095254 S1321 SLE577923271
Large 9327868095278 S1322 SLE585414421