Montbell U.L. Thermawrap Jacket vs Patagonia Nano-Air Ultralight Pullover
Weight and specs compared for 2026 — and which one to choose.
Ultralight synthetic Exceloft insulated jacket with 15D Ballistic Airlight nylon shell, highly packable for cool weather.
Active insulation pullover with 20g FullRange synthetic fill and breathable side panels. Ideal for high-output hiking in cool-to-cold conditions.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Montbell U.L. Thermawrap Jacket vs Patagonia Nano-Air Ultralight Pullover: which should you buy?
If saving weight is your priority, the Montbell U.L. Thermawrap Jacket wins — at 227 g it is 22 g (9%) lighter than the Patagonia Nano-Air Ultralight Pullover (249 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.