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MontBell - Super Spiral Burrow Bag #3 (Fall 2013)

Quick Overview

30 degree three-season bag
Super Spiral Burrow Bag #3 (Fall 2013)
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MontBell has adapted a classic tailor's trick by integrating a woven fabric "cut on the bias". By orienting the fabric's warp and weft threads at 45 degrees to most major seam lines the sleeping bag becomes more fluid or elastic in nature. To create an even more comfortable system we utilize an elastic stitch technique to create small "gathers" in the quilting. By combining strategic seam orientation and the elasticized gathers MontBell offers unrivaled fit and comfort. These innovations allow the sleeping bag to stretch with you as you change positions throughout the night, drawing the insulation closer to your body and eliminating drafty dead spaces. Keep body heat inside your sleeping bag, where it belongs.
Manufacturer MontBell
Weight REGULAR: 2 lbs 8 oz.
LONG: 2 lbs 10 oz.
Gender Men's & Unisex
Temp Rating º F 30 F
Temp Rating º C -1.11 C
Bag Style Mummy
Seasonal Usage Three Season
Insulation EXCELOFT® synthetic insulation with siliconized fibers
Bag Shell Material 40-denier multi-filament Full Dull nylon
Standard 25-wash rated DWR
Bag Length REGULAR: 6 ft 0 in.
LONG: 6 ft 6 in.
Bag Stuff Size REGULAR: 7.5 x 14.8 in.
LONG: 7.5 x 14.8 in.
Waterproof No
41˚F (5˚C) - Comfort
32˚F (0˚C) - Lower Limit
4˚F (-15˚C) - Extreme

Inside Shoulder Girth:
REGULAR: 53 - 75 in.
LONG: 57 - 81 in.

Inside Knee Girth:
REGULAR: 44 - 62 in.
LONG: 47 - 66 in.

-- Super Spiral Stretch System
-- 2-way auto locking full zipper
-- Zip together design

Construction: Single
Draft Tube: Single
Neck Baffle: No
Tunnel Hood: No

-- Super Spiral Stretch System (US. Patent NO. 7,900,301)
-- Insulated using Shingle or Tile Construction
-- Draw cord for face hole adjustment
-- 67 in. mating right & left hand zippers
-- Auto Locking Zipper to limit zipper "slip" during the night
-- Tapered, bias stretch stuff sack for easier packing
-- Single insulated zipper draft tube
-- Cotton storage sack included
Product Reviews
Product Reviews
Great multi-season bag. Review by Felix

I have used this bag on a lot of trips. Its not rated for winter, but with a few layers on, you can make it through some really cold nights. There was one trip where I just had this bag and a crap bivy. It ended up raining, and the bivy didn't quite keep the rain out, but since the bag is made of synthetic insulation it still kept me warm and dry! I know most people don't like mummy style bags since they restrict movement, but the spiral sewing ( as opposed to straight baffles) allows you to move around a bit. I have abused the heck out of this bag, but still love it for summer time trips.

(Posted on 7/11/13)

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