Gear Review: Patagonia Nano Puff® Hoody

A couple months ago I got my hands on the iconic Patagonia Nano Puff® Hoody and I’ve come to discover why I often see climbers milling about both at the cliffs and at the local coffee shop in this well designed piece. The non-hooded version of this jacket won the Editors Choice Classic Award from Climbing Magazine. I prefer hoods on almost all my outdoor clothing so I was happy to review the hooded version. This jacket falls into the “light puffy” category. If you are looking for a full on winter belay jacket you can check out some “full puffy” models I am reviewing here.

Buy on Backcountry

Patagonia Men's Nano Puff® Hoody
Patagonia Men’s Nano Puff® Hoody- photo from

So let’s break down what makes this piece an excellent addition to your outdoor wardrobe!


The Patagonia Nano Puff® Hoody uses super light and compressible 60-g PrimaLoft® Gold ECO Insulation. “Gold” Primaloft is the highest level of synthetic insulation and of course being the environmentally conscious company Patagonia is known for they went with the ECO version of Gold which is 55% post-consumer recycled content. So you can feel warm and fuzzy while feeling warm and… ok that’s a bit too cheesy.

Patagonia Men's Nano Puff® Hoody

The “brick quilting” pattern is superior to other less expensive baffling methods and keeps the insulation in place preventing cold spots.


The Patagonia Nano Puff® Hoody uses 1.4-oz 22-denier 100% recycled polyester with a DWR (durable water repellent) finish. Well what does that mean? 1.4-oz 22-denier feels like silk!

Patagonia Men's Nano Puff® Hoody
Brick Quilting Pattern = no cold spots

This isn’t a cheap nylon taffeta but a very abrasion resistant and pack-able material. It is quite comfortable over bare skin which is good since I broke this out repeated this Fall to wear directly over a t-shirt.


12.8 oz. / 362 grams. Ultralight weight and super compressible, this is undoubtedly where the jacket go its namesake. Nano in this sense means extremely small. The Patagonia Nano Puff® Hoody easily stuffs into its own internal chest pocket which measures about 8 x 7 x 4 inches.

Patagonia Men's Nano Puff® Hoody
A lot of warmth in a small little package

A carabiner sewn loop allows you to clip this off to the back of your harness if you are leaving your pack on the ground and the top of the pitch looks a little bit more breezy than the base of the route.


I found the sizing to be spot on. I went with a large which fits my 42 inch chest with a little extra space for a soft-shell and base-layers but not too baggy to throw on over a t-shirt. The hood is sized to fit under your helmet but I found it would fit over as well, but a bit snug.


Patagonia Men's Nano Puff® Hoody
A blustery day rock climbing this Fall near Gorham, NH

Probably more comfortable, and warmer, to wear this hood under your helmet unlike traditional belay jackets with over-sized hoods.


Rounding out some of the features I haven’t mentioned yet:

  • Center-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfort
  • Two zippered handwarmer pockets have cleanly finished zipper garages
  • Under-the-helmet hood construction is light and simple
  • Drawcord-adjustable drop-tail hem seals in warmth


This is a super versatile layer that can serve many purposes.

It’s the perfect balance of warmth, weight, and pack-ability for climbing on the edge seasons.

Fall rock climbing is the best rock climbing in the Northeast and this jacket is ideal as your insulating layer all on its own. The DWR finish and warm-when-wet insulation adds protection should you leave the rain shell at home and get surprised by a later afternoon shower. After the leaves have fallen and the ice is starting to grow this becomes an excellent mid-layer, taking the place of heavier and less compress-able 200 weight fleece jackets. With quality long underwear, a soft shell, Patagonia Nano Puff® Hoody, and a hard-shell you have an adjustable system that can handle almost any winter conditions. I’ll still carry a heavier full on belay jacket when swapping leads ice climbing but for fast solo missions this is a perfect companion!

If you think you’d like this jacket you can find it at  Backcountry. If you liked this review please leave a comment below and subscribe above!

See you in the mountains,

Northeast Alpine Start

Disclaimer: Patagonia provided this item for purposes of review. The opinions expressed above are my own. Affiliate links above help support this blog.

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