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.
Check price Full details →Active insulation pullover with 20g FullRange synthetic fill and breathable side panels. Ideal for high-output hiking in cool-to-cold conditions.
Check price Full details →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.