How does the Leaf Atom Hoody differ from the regular Atom Hoody?

The Leaf version uses a military fit for layering, CLIMASHIELD Combat Fibrefill, a stretch mini-rip shell and No Slip Zip hardware. The civilian Atom uses Coreloft and a trimmer cut.

Is it warm enough on its own?

It is a lightweight midlayer at 2 oz insulation and 15.7 oz total. It works as an outer layer in cool, dry conditions but is meant to go under a shell in cold or wet weather.

The Leaf military fit is roomier than the standard Atom to allow layering over a base layer or under a shell. If you want a trim fit, size down or look at the civilian Atom.

Does the hood fit under a helmet?

The insulated hood is low-profile and designed to layer, but check clearance if you wear a helmet. Many users wear it under a hard shell hood instead.

What sizes are available?

XS through 2XL. The listed price is $300 at Amazon as of November 5, 2026.

Only one new price is listed right now, $300 at Amazon as of November 5, 2026. Arc'teryx Leaf gear rarely discounts deeply, so watch for end-of-season sales.

Where is the Arc'teryx Leaf Atom Hoody Men's cheapest?

At Amazon, for $300.00, as of our latest check.

Arc'teryx Leaf Atom Hoody Men's

Best price now

$300.00at AmazonObserved at 5:23 PM

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Our take on the Arc'teryx Leaf Atom Hoody Men's

The Arc'teryx Leaf Atom Hoody is a lightweight insulated hoody built for military and field use, with 2 oz CLIMASHIELD Combat Fibrefill and a stretch mini-rip shell from Japan. It layers under a shell or plate carrier and packs down small for its warmth. The military fit and No Slip Zip main closure are the main differences from the civilian Atom. At $300 at Amazon as of November 5, 2026, it is the only new price listed, so there is no recent range to compare against.