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MontBell Super Spiral Burrow Bag #5

rated 4.5 of 5 stars
photo: MontBell Super Spiral Burrow Bag #5 warm weather synthetic sleeping bag
Version reviewed: Long

It's not as compact as down, but it is light, small, and as warm as advertised. The spiral stitching holds the bag close to keep you warm, yet allows full and easy flopping around, which I do.


  • Light weight
  • Durable
  • Fit
  • Breathes
  • Price

I bought this bag for late spring to early fall backpack and bikepacking trips. Budget, size, weight and warmth were the key factors. Down was out of my range.

I compared several similar bags in stores and the Montbell stood out as the clear leader. The bag sleeps just as advertised. Good for me to 35deg if I have on a light pair of long johns. It breathes as well as any other bag I have tried. The spiral stitch makes a huge difference in comfort and being able to move around in what is effectively a mor snug bag. I'm 6'1 with large feet and the long bag is perfect.

I've spent more than 50 nights in the bag with no signs of wear or break down. For the price, pack size and weight it is a great bag.

Source: bought it new
Price Paid:

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regular long
Price MSRP: $139.00
Historic Range: $119.20-$128.95
Weight 1 lb 15 oz / 880 g 2 lb 1 oz / 940 g
Temperature rating 40 F / 4.4 C
Fill Exceloft synthetic
Shape mummy
Max user height 6 ft 0 in / 180 cm 6 ft 6 in / 200 cm
Shoulder girth 53 - 75 in / 130 - 190 cm 57 - 81 in / 140 - 210 cm
Knee girth 44 - 62 in / 110 - 160 cm 47 - 67 in / 120 - 170 cm
Price $139.00 USD $154.00 USD
Product Details from MontBell »