Montbell U.L. Thermawrap Jacket vs Patagonia R1 Air Hoody

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

Montbell U.L. Thermawrap Jacket is the lighter option — 79 g lighter than the Patagonia R1 Air Hoody (26% less weight). If grams matter to you, that is the one to beat.

Spec	Montbell U.L. Thermawrap Jacket	Patagonia R1 Air Hoody
Weight	227 g · 0.227 kg · 0.50 lb	306 g · 0.306 kg · 0.67 lb
Brand	Montbell	Patagonia
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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Patagonia R1 Air Hoody

306 g

Polartec Power Air fleece midlayer with excellent breathability and moisture management. A reliable active hiking layer for cool conditions.

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Montbell U.L. Thermawrap Jacket vs Patagonia R1 Air Hoody: which should you buy?

If saving weight is your priority, the Montbell U.L. Thermawrap Jacket wins — at 227 g it is 79 g (26%) lighter than the Patagonia R1 Air Hoody (306 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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