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Sea to Summit Traveller I Down Sleeping Bag (+10C)

Sea to Summit Traveller I Down Sleeping Bag (+10C)
$319.00 - $349.00
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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.

Weight: 420g / 14.8oz
Fill: 750+ loft RDS-certified ULTRADRY Down™
Fill Weight: 200g / 7.1oz
Compressed Volume: 1.6L

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

10C Regular
10C Large
Bag Series 
Traveller 1
Traveller 1
Bag Weight
14.8oz / 420g
1lb 1.6oz / 500g
Compressed Volume
1.6 L
2.4 L
Compression Sack
XXXS - 2.5L to 1L
XXS - 3.3L to 1.3L
Fill Weight
7.1oz / 200g
8.5oz / 240g
Fits up to 
6 ft / 183 cm
6 ft 4 in / 192 cm
Season Rating
10º (Lower Limit)
10º ( Lower Limit)
Womens Temperature
14ºC (Comfort)
14ºC (Comfort)



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

Sea to Summit Traveller Sleeping Bag

From summer bike tour to couchsurfing, airport lounge to hiking the Camino trail, our Traveller™ series bags transform to quilts for ultimate lightweight and compact versatility on the trail, bike, flight—or couch. For more info and specs:

Part Numbers

Option UPC MPN Store SKU
Regular 9327868095223 S1311 SLE655299770
Long 9327868095247 S1312 SLE661729630