sleeping bags

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Integral Designs
North Twin


(10° F / -10° C) 4 1/2" Loft

Integral Designs North Twin sleeping bag
One of the most versatile bags in the series. Plenty of insulation for frosty nights and 3+ season use. Built in collar with shock cord and toggle adjustment allows for a complete seal around the top of your shoulders.

Materials: 4oz Primaloft Sport insulation, 2 and a half layers on top and two layers on bottom; Pertex microlight outer shell fabric; Pertex microfibre taffeta inner lining (black)

Product Review: If consistently camped in wet oe unpredictable weather, the North Twin would be my choice. Oh-so-close to down, and therefore my favourite synthetic fill bag"

        —Outside Buyers Guide

The North Twin's hood design
The North Twin's hood profile
The North Twin's footbox
The North Twin's hood profile

NOTE: ProMountainSports can only stock so many bags. All of our in-stock Integral Designs bags have a 30" zipper for less weight and maximum warmth. The Short sizes are available in Crimson (red), Regular sizes in Electric Blue, and Long sizes in Black. Other colors (Black, Crimson, Electric Blue, and Spruce) and custom features can be special ordered with a 3-4 week lead time. ID bags can be special-ordered in a more roomy, broad cut which increases the price of the bag roughly 15%.


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Phone: 206.522.1627
Fax: 206.522.1663
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