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Sierra Designs Zissou Plus 700 2-Season

rated 4.0 of 5 stars
photo: Sierra Designs Zissou Plus 700 2-Season 3-season down sleeping bag


regular long
Price MSRP: $219.95
Historic Range: $103.99-$239.95
Reviewers Paid: $99.95
Trail Weight 2 lb 2 oz / .97 kg 2 lbs 5 oz. / 1.05 kg
Insulation 700 Fill Duck DriDown
Fill Weight 14.3 oz 15.7 oz
EN Comfort Limit 36° F / 2° C
EN Lower Limit 26° F / -4° C


1 review
5-star:   0
4-star:   1
3-star:   0
2-star:   0
1-star:   0

The design is innovative and the bag bag is warm and roomy made with excellent materials.
5-star warranty, design, materials, and comfort. Minus 1 star for quality control.


  • High loft for a 2 lb. bag
  • Roomy enough for active sleepers or larger bodies
  • Silky soft fabric
  • I like the quilt/blanket very much
  • Fluid zippers just didn't snag once


  • Quality control five baffles on the bottom had NO FILL

Short story. I bought this last winter for sleeping in an unheated home in the NorCal coast redwoods that ran 43-48 degrees with high humidity for months and I until then this was the best warm weather bag I've owned and used.

I sleep cold, as I'm 66 years old, and this bag was warm from two minutes after I'd slide in all through the night and it was very cozy, just like a bed. I highly recommend the design.

Because I slept on a mattress I hadn't noticed, but on close inspection I found that five baffles on the bottom had NO FILL; that's right, NONE. An email to SD warranty was quickly answered and I was given an RMA to send it in for repair/ replacement.

Several days later I was advised that the bag couldn't be repaired or replaced with the same model. They'd wholesaled all the rest to retailers, so it was suggested it be replaced with the current model. I told the cs rep that I wasn't impressed with the specs. of SD's new Zissou, as they'd gone from 14.3 ounces of 700 fill to 12.7 ounces of 600 fill and he suggested the Backcountry Bed 700/35, as a move up without cost to me, so I said I'd give it a try.

As soon as I got it I knew it would not work for me. The blanket is sewn in at waist level so I needed to slide in my legs and squiggle down and it's the opposite for getting out; not workable for me, as I'm up and down several times during a night's sleep; so an email and back it went.

Now, it gets good. The rep gave me full credit for the retail price of the BC Bed 700 and with an $87+tax charge I bought a real winner and the best three-season bag I've ever had; the Nitro 800/20. It's the shizzz!

Source: bought it new
Price Paid: $99.95+tax from Sierra Designs store on model closeout

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