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5.0 9

Sea to Summit

Latitude LtIII Sleeping Bag

From $449.90
or 4 easy payments of $112.48 with

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92 Richmond Rd, Keswick SA Mon - Fri: 9am - 5.30pm
Sat: 9am - 5pm
Sun: 12pm - 5pm
17 Doherty St, Brendale QLD Mon - Fri: 9am - 5.30pm
Sat: 9am - 5pm
Sun: 9.30am - 2.30pm

Imagine a sleeping bag that kept you warm in extreme climates but was designed with a balance of features that made it comfortable for a family camping getaway? Well look no further, the Sea to Summit Latitude LtIII is an amazingly warm bag with extra room around the chest and feet, and a full-length zip so you can open it right out in mild conditions.

A differential cut construction combined with offset baffles and a tapered roomy foot section provide an amazing balance of warmth and comfort. Nothing has been left out in the interest of saving weight, draft tube, neck baffle, three-dimensional hood and draw-cords to keep the warmth in, the Latitude is a fully featured bag.

They’ve even included an internal zippered accessory pocket! Once compressed the Latitude takes up just 9.5L of volume in your pack and comes with a laundry bag/storage cell for when your adventure is over. If you’re looking to keep yourself warm on the summit of Kosciusko in the middle of winter, the Sea To Summit Latitude LtIII is the bag for you.

  • Tapered rectangular shape
  • 60 top / 40 bottom-down distribution
  • Roomy chest and foot sections
  • Full-length side and foot zip
  • Can be opened to full duvet
  • Includes compression sack & storage bag
Snowys Code:
Supplier Code:
Comfort Temp. Rating:
-10 °C
Lower Temp. Limit:
-17 °C
Fill Ratio Top/Bottom:
60 / 40
Max. User Height:
183 cm
Internal Girth:
155 cm Chest | 140 cm Hip | 110 cm Foot
External Dimensions:
203L x 70W x 8H cm
Packed Dimensions:
40L x 20W x 20H cm
Compressed Volume:
9.6 L
2D NanoShell™ 20D Nylon with DWR
Fill Material:
750+ Loft 90/10 ULTRA-DRY™ Premium Duck Down
Fill Weight:
750 g
20D Nylon
Zip Draft Tube:
Neck Draft Tube:
With dual elastic adjustment
Dual YKK #5
1.29 Kg
Suggested Use:
Hiking | Trekking
Limited Lifetime

(9 reviews)
5.0 9
5 stars
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1 star
Sep 26 2017

Its like sleeping in a warm cloud

I just love it. I finally have completed my sleeping solution! I am a cold frog and to be warm when its minus something silly outside the tent - it was worth every cent! Thanks Snowy's for all your assistance in choosing the right bag for me! Highly rate the service and my sleeping cloud!

- Adelaide
Sep 25 2017


Great bag. Had this in Nepal down to 0 degrees and in 'straya down to minus 3 several times. Fantastic bag, good quality construction. Very warm when used correctly (don't get lazy or drunk and leave it not done up properly). Snowys was great as usual. Recommend this bag!

- Lidcombe
Jul 19 2017

Great bag, great service

This is an great sleeping bag - good to get a decent sleeping bag made for a smaller person. Also excellent service from Snowy's - as usual they are well priced with really fast delivery

Feb 23 2017

Another quality product from S2S

I love this bag! It stands up to some seriously frosty temps down here in the wilds of Tasmania. Its fits my size and frame (5ft 7" 63kg) perfectly. I also like the cantered foot bed. No cramped toes after a day spent scrambling up the Arm River track or into The Labrynth. Ive had this bag for some time now and its never dissapointed. If your after a quality intermediate down bag id definitely recommend the S2S LT111.

- Launceston
Feb 14 2017


We used this bag on a trek in Bhutan where temperatures reached at least minus 10. The bags were roomy and kept us toasty warm in the freezing conditions. The internal pocket was handy for storing our phones and camera batteries and the full zip will be convenient for warmer camping trips where we plan to use the bag as a doona instead. Quality product that exceeded our expectations.

- Sydney
Feb 07 2017

Loved this bag!

I took it on the Overland Track in Tassie while it was snowing.It was warm, light and kept me cosy during the cold nights. Very, very happy with this product.

- Port Sorell
Dec 27 2016

Great Value

I recently brought this sleeping bag and took on the Frenchman's Cap hike in Tasmania, it was absolutely fantastic, light, compact and extremely warm.
Great price and exceptional service from Snowy's.

- Cobram
Nov 13 2016

Did the job well

I bought the Latitude III for my trip to Nepal trekking along the Everest Base Camp trail. I was extremely pleased with the bag, it was warm enough (although we only had temperatures around zero degrees) and roomy enough. Hood pulled around my head fine. Compressed well into its bag. It also comes with a storage bag too. When taken out of its compression bag it fluffs up well. It would have been nice to have a pocket inside as I slept with mobile and camera to try and maintain battery charge in the cold...but this is a minor criticism. Good price, good service from Snowys; no hesitation in recommending this bag.

- Maitland, NSW
Mar 15 2016


This bag is absolutely the best it's roomy, snug, soft, and extremely warm can't wait for winter camping and hiking in the aussie alps beats my old sleeping bag any day worth the money, always great service and best price from the team at snowy's ☺


Latitude 3 or spark 31 answer

Hi can't decide which is best for lightweight hiking in Victoria, any advise?

- Mount eliza (8 months ago)

G'day Tom,

To help you with your decision, can you give me a bit of insight into what features matter most to you? Warmth? Weight? Space Available? Packed Down Size?

Alternatively, feel free to give our Customer Support team a call on 1300 914 007 and they can help chat through your options with you.

- Snowys(8 months ago)

T11 Women's or T3?1 answer

Hi, I'm tossing up between the Latitude women's T11 and the Latitude T3 as I'm heading to the Himalayas & need something warm. I'm approx 167cm & about 55kg. I guess potentially, I could fit in either. But I like a bit of wriggle room & don't like to feel too restricted & im nearing the max height for the women's T2. What would your recommendations be? Is the T3 quite narrow? Thanks in advance.

- Seacombe Gardens(9 months ago)

G'day Helen,

Tough call with out getting you in the bags to try them out but I'd say go for the Sea to Summit Latitude WLtII. It'll definately give you a bit more wiggle room around the hips and feet. Height wise you'll be fine, I'm 165cm and 60kg and I just went and jumped in one to check. Definately roomier than my unisex LtII as well! Have a great trip to the roof of the world! 

- Snowys(9 months ago)

Size1 answer

I'm a 182cm tall male. What size should I go for?

- Katherine(10 months ago)

G'day Ivan,

You'd just fit into the regular size Sea to Summit Latitude LtIII sleeping bag and this would keep you nice and snug. However, if you're after a bit more space in the length, I would definitely recommend going with the long size.

- Snowys(10 months ago)

Female 170 cm in height which bag1 answer

My kid is 170 cm at 14 yrs of age. Doubt she will grow much more but is the height of the back from the shoulders or head? 170 cm seems small. Also do you offer this bag in a regular right zip?

- Adelaide(11 months ago)

G’day Di,

It looks like the regular size – which caters for users up to 183 cm would be the best size if your daughter as she’s 170cm tall (the short size has a max height of 165cm, the long 192cm).

We measure our height recommendations from the inside of the bag at the foot to just where the hood starts.  

I’ve just checked our system, and we don’t have any stock of the Latitude LtIII Right Zipper bag as it has actually been discontinued, unfortunately. 

- Snowys(11 months ago)

Can you zip 2 bags together?1 answer

Hi, I was wondering if you can zip these bags together as long as the zippers are on the opposite sides? If they do, how would it go if you zipped a long and short bag together? Thanks Paul

- Sydney(1 year ago)

G'day Paul, 

I've just confirmed this with Sea to Summit, and as the length of the side zip is the same across the sizes of the Latitude LtIII, so you can zip a long and short bag together. 

- Snowys(1 year ago)

see in details TAB1 answer

have enquiries re the following bag Nothing is mentioned re the fabric down and water resistance qualities eg. other bags have a Pertex Endurance shell is brilliant in damp conditions, providing excellent breathability and water resistance at minimum weight. An inner of highly breathable, 15-denier Vapour Vent fabric saves

- Scarborough(1 year ago)

G'day Thomas, 

I've spoken to Sea to Summit, and they've given me the following information about your queries: 

The Latitude uses a micro-porous coating on a 20 denier nylon to create a waterproof/breathable shell fabric. The specs of the Latitude's fabric (water head and breathability) are very similar to the Pertex Endurance product, though it's marginally heavier to provide better durability. 

Those specs are not published by Sea to Summit as they are constantly working to improve them. Because they work directly with Fabric Mills (rather than just buy fabric in the marketplace) they can keep tinkering and changing the fabric to make it better.

The outer fabric also works extremely well in damp conditions, as well as offering excellent breathability to vent perspiration during use.

I hope this fully answers your question about the Latitude LtIII, let us know if you need any more information. 

- Snowys(1 year ago)

Latitude 3 or Talus 3?1 answer

Hi there, I have been looking at these 2 sleeping bags and the differences seem fairly minor. Talus compressed volume is 9.15L, Latitude is slightly bigger at 9.6L. Latitude has a bit more room at the hips and feet. Latitude has a foot opening, Talus doesn't. Talus has 3D side walls, Latitude doesn't. Talus weighs 1225g, Latitude weighs 1290g. So my questions: Are there any pros or cons to either bag I am missing? Are 3D side walls much of an advantage? I don't really get what this is. I am 160cm and 63kg female, would you suggest a short sleeping bag? For 2 sleeping bags to be zipped together I assume they would need to be the same size, is this the case, or can short and regular awkwardly zip together somehow? I am a very cold sleeper and intend to use the bag for 3 season hiking and camping so warmth, compressed size, and weight are all important. Thanks!

- Sydney(1 year ago)

G'day Jo,

There are some minor differences between the Talus and the Latitude. The Talus has a slightly narrower foot end, at 107cm compared to a little more generous Latitude 118cm, and the Latitude offers a double zipper instead of the single in the Talus.

The rest of the features of the two Sleeping Bags are very comparible. 

- Snowys(1 year ago)
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