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Montbell U.L. Thermawrap Jacket vs Outdoor Research Ascendant Hoody

Weight and specs compared for 2026 — and which one to choose.

Montbell U.L. Thermawrap Jacket is the lighter option — 113 g lighter than the Outdoor Research Ascendant Hoody (33% less weight). If grams matter to you, that is the one to beat.
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Spec Montbell U.L. Thermawrap Jacket Outdoor Research Ascendant Hoody
Weight 227 g · 0.227 kg · 0.50 lb 340 g · 0.340 kg · 0.75 lb
Brand Montbell Outdoor Research
Category Clothing - Mid Layer Clothing - Mid Layer
Montbell U.L. Thermawrap Jacket
227 g

Ultralight synthetic Exceloft insulated jacket with 15D Ballistic Airlight nylon shell, highly packable for cool weather.

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Outdoor Research Ascendant Hoody
340 g

Polartec Alpha Direct fleece for high-output activities.

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Montbell U.L. Thermawrap Jacket vs Outdoor Research Ascendant Hoody: which should you buy?

If saving weight is your priority, the Montbell U.L. Thermawrap Jacket wins — at 227 g it is 113 g (33%) lighter than the Outdoor Research Ascendant Hoody (340 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest clothing - mid layer page, or browse the full gear weight database.

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