The Montbell Ultralight Thermawrap Jacket is a lightweight insulation layer (a size XL is 9.1 oz.) that is exceptionally warm. I wear it directly over a base layer, replacing bulkier garments like a fleece pullover. It’s also windproof, which means I can shed an outer shell layer during aerobic activities such as snowshoeing or cross-country skiing and achieve a greater range of motion in my arms and torso.
The jacket comes with elastic waist hem and sleeve cuffs to keep your body heat in and the cold out. Two zipperless hand warmer pockets are provided in front, which is a really nice feature on very cold days when you need to take a rest. The jacket collar is lined with a thin layer of fleece and zips up to the bottom of your chin. A parka version of the Montbell Thermawrap Jacket is also available with an integrated hood.
Montbell’s Thermawrap clothing line uses a proprietary synthetic insulation known as Exceloft which combines polyester microfibers and hollow tube fibers in a heat crimping process, providing a material that insulates like natural geese down. However, unlike down, Exceloft retains 80% of its insulation value when wet and absorbs less than 1% of the water it comes in contact with making it highly resistant to saturation and extremely fast drying. In other words good stuff for winter conditions.
Fit for the Thermawrap Jacket is a bit small. I wear an XL (the maximum size) and I have a chest size of 46.
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