2015 Ski Guide2015 Ski Guide


A toasty down bag with a slightly more relaxed fit, a versatile design, and cutting-edge condensation protection.

Lofty and quick-drying for cool nights in the mountains, the 19-Degree Sea To Summit XtI Down Sleeping Bag locks in warmth and is versatile enough for mild winter nights and yurt trips. Its patent-pending, highly breathable 3D NanoShell fabric features a Nano-DWR coating that blocks out exterior moisture, and a unique siliconized polyester barrier beneath the shell prevents condensed body moisture from soaking back into the down.
  • EN Rated with a lower limit of 19 Fahrenheit, this bag is best suited for spring and fall nights in the mountains or in milder climates year-round
  • The 3D NanoShell features a siliconized polyester barrier that prevents evaporating moisture and condensation from migrating back into the down
  • The combination of the Nano DWR and this hydrophobic barrier helps prevent outside moisture from accumulating in your insulation so your bag stays dry and you stay warm
  • Foot zip feature means the bag can be used as a quilt for milder nights
  • The 850+-fill European goose down provides a better warmth-to-weight ratio than anything on the planet
  • Offset baffle construction, side block baffle, and 60-40 (top-bottom) fill ratio prevent cold spots from developing
  • Draft tube with lightweight YKK #5 zippers stop heat loss, and the micro anti-snag liner protects the soft inner fabric
  • Adjustable draft collar, cushioned hood, and anatomically tapered footbox keep the down as close as possible to your cold zones

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Sea To Summit Xtl Sleeping Bag: 19 Degree Down

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Here's what others have to say...

Unanswered Question

Where are these bags manufactured?

Posted on

Where are these bags manufactured?

I'm trying to decide between the 12 and...

Posted on

I'm trying to decide between the 12 and 19 degree downs by Sea to Summit and also the 15 degree Helium by Marmot. Can anyone offer any insight, one backpacker to another about these? I don't live near a store to test them out so I'd have to order online. I'm wondering what people think. I'm 5' 6'' too, so size decisions are borderline. Any comments are appreciated! Thanks!

Responded on

Id say if you go Sea to Summit, it seems they run a little shorter, so I might stick with regular. I own the 19 Degree (long at 6'1"), and I have owned Marmot 800-fill down bags. Sea to summit is of much higher quality, unquestionably. The Nanoshell technology seems to do its job, my bag stays drier than others without a waterproof shell, as well as being highly breathable. The degree level is up to you; they both have the same feature set.

Is this bag FULLY waterproof? Can I sleep...

Posted on

Is this bag FULLY waterproof? Can I sleep outside in the rain and not get wet?

Responded on

Nope, definitely pick up a bivvy sack or something, rain will soak this through.