S2S Spark

[Moondog55]

http://www.seatosummit.com.au/products- ... spark-spi/

Any body had a chance to look at one yet, any news on the retail cost as yet??
It seems to be $150- cheaper in the US than here looking at some US sites
it ticks a few of the boxes IF I am allowed to get a new LW summer bag

[Giddy_up]

It's very snug Moondog, I wouldn't fit in it that's for sure, but for small people it would be a great bag.

[icefest]

It looks really light. It's as light as a Zpacks 5c bag with extra hood.

[Joomy]

It looks really light. It's as light as a Zpacks 5c bag with extra hood.

But I notice that the Spark 3 is not nearly as light as the Zpacks equivalent. The hood is where the weight is but a 40 gram down hood will be warmer than a sewn on hood anyway. Plus I guarantee the Spark series are narrower than the Zpacks bags (but the Zpacks "long" corresponds to an STS "regular").

[icefest]

(but the Zpacks "long" corresponds to an STS "regular").

I didn't realise this.

So it seems the Zpacks bag is 2g heavier without hood, but I'd guess much warmer. It even has baffles.

[Moondog55]

There is a Large available in the Spark that is both longer and wider. I am still waiting for a reply to my query at the S2S website,
If used a liner would an additional 20 C be an unreasonable expectation, the much lighter PHD liner is states as giving 10C.
Not that I really need a -30C bag

[Joomy]

There is a Large available in the Spark that is both longer and wider. I am still waiting for a reply to my query at the S2S website,
If used a liner would an additional 20 C be an unreasonable expectation, the much lighter PHD liner is states as giving 10C.
Not that I really need a -30C bag

Even STS "long/wide" options in their narrower series are very narrow. I tried a Talus and it was snug on me and I'm thin. My friend who is solidly built found it too tight.

You could use it as a liner as long as the bag you'd be using it in is quite roomy. I think PHD say "up to 10C" for their liner, but yeah, all other things being equal you would expect the Spark to be warmer when used as a liner.

[Moondog55]

I have long skinny legs and reasonably broad shoulders

Size: long to 195cm tall, chest circumference 155cm, hip 136cm and foot 96cm which is a little larger than the regular but still quite tight for a bloke with a 117 chest.
Looking at the 3 models of the bag I think the middle one would suit my needs a little better as I am quite a cold sleeper but it would also make a decent emergency bag for my skiing day pack.
Any of them would be suitable for me I think but if I am going to cut my "Big 3" down perhaps I should just get the lightest, dollars will tell, shame I'm not in the industry or a review writer isn't it.
Getting one with a broken zipper would be a cheap way to obtain a new half bag too, although I doubt that will ever happen.