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At 5.2 ounces (147 grams), the Montbell U.L. Thermawrap Inner Vest is among the lightest synthetic insulation vests on the market. It comes with a Chameece micro-fleece lined collar, elastic openings at the waist and arms, and a full length YKK zipper. The Montbell U.L. Thermawrap Vest lacks other features such as pockets and a drawstring waist (features that would add to its weight but not its insulation performance). The Montbell U.L. Thermawrap Vest is a single-minded garment that provides maximum synthetic warmth at a minimum weight. The Montbell U.L. Thermawrap Vest review addresses detailed specifications, warmth, storm resistance, usability, fit, value, and recommendations for improvement.
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