← All gear comparisons

Arc'teryx Atom Jacket vs Patagonia Nano-Air Ultralight Hoody (Men's M)

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

No winner on weight yet. The recorded weights have not both been verified on the same basis. Size, included parts and single-item versus pair weights can differ. Check the linked sources before choosing a replacement.

Swipe to see all details.

Spec Arc'teryx Atom Jacket Patagonia Nano-Air Ultralight Hoody (Men's M)
Weight 335 g · 0.335 kg · 0.74 lb
as listed, no size stated on page (men's)
 249 g · 0.249 kg · 0.55 lb
Brand Arc'teryx Patagonia
Category Clothing - Mid Layer Clothing - Mid Layer
Arc'teryx Atom Jacket
335 g

Insulated mid-layer with Coreloft Compact synthetic fill and stretch panels. PFAS-free DWR finish (2025). Versatile for active use in cold wet conditions.

See it in your base weight → Full details →
Patagonia Nano-Air Ultralight Hoody (Men's M)
249 g

Active insulation hoody with 20g FullRange synthetic fill throughout. Highly breathable uninsulated side panels. 8.8 oz. Ideal as a mid-layer for active pursuit...

See it in your base weight → Full details →

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.

HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.

Arc'teryx Atom Jacket vs Patagonia Nano-Air Ultralight Hoody (Men's M): which should you buy?

The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.

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

More clothing - mid layer comparisons

Arc'teryx Atom Jacket vs Patagonia Micro Puff Jacket Arc'teryx Atom Jacket vs Patagonia Nano-Air Ultralight Full-Zip Hoody Arc'teryx Atom Jacket vs Rab Xenair Alpine Light Jacket Arc'teryx Atom Jacket vs Arc'teryx Atom LT Hoody Arc'teryx Atom Jacket vs Arc'teryx Atom Hoody Arc'teryx Atom Jacket vs Black Diamond Solution Jacket