Gear Review: Black Diamond First Light Stretch Hoody

I’ve been testing the new Black Diamond First Light Stretch Hoody since early October and after a half dozen trips into the alpine with it I’m ready to share my thoughts.

TLDR Version: This is an outstanding addition to the “light puffy” market and I’m stoked to have this in my current rotation of outdoor clothes.

How I Tested: Two ice climbing trips to Mount Willard, an ice climbing trip into Tuckerman Ravine, two Mount Washington attempts (one successful summit, one bail at Lion Head due to very poor visibility and extreme winds higher)

Before I get into my personal opinions on this jacket let’s look at the manufacturer description and specifications:

Manufacturer Description:

The perfect layer for backcountry rock walls, big alpine faces, and frigid weekend ski tours, the Black Diamond First Light Stretch Hoody is the ultimate in dynamic four-season insulation that breathes efficiently and stretches with your every movement. The jacket packed with migration-resistant Primaloft Gold Active, maintaining breathability during even the most intense high-output pursuits. The 20D nylon ripstop face fabric and stretch liner resists weather and encourages full range of motion, while remaining incredibly durable through rugged talus, brushy approaches and daily use. Additional features include an adjustable, climbing-helmet-compatible hood, a low-profile, single-adjust hem and a highly packable design that stuffs into the internal stretch mesh pocket and clips onto your harness, all your needs are covered. Fit and overall design has been entirely overhauled for 2023.

PRODUCT FEATURES

  • Migration-resistant PrimaLoft® Gold Active Insulation
  • 20D nylon ripstop face fabric with PFC-free DWR Technology
  • Lightweight, stretch lining for added breathability
  • Mapped insulation throughout body, shoulders, and arms
  • Adjustable, climbing-helmet-compatible hood with drawcord adjustment
  • Underarm gussets for added range of motion
  • Low-profile, single-adjust hem
  • Stows in internal left hand pocket with carabiner clip loop
  • Two concealed-zip hand pockets
  • Primary fabric is Bluesign approved
  • ECO Label Status
  • Fit: Regular
  • Claimed Weight: 14.29 ounces
Black Diamond First Light Stretch Hoody Review
November 25th, 2023 early season ice mission into Tuckerman Ravine, Mount Washingon

Personal Opinions:

The “light puffy” has become a staple in my winter outdoor clothing scheme. My biggest requirements in a quality piece are; high warmth to weight ratio, high breathability, high packability, decent water resistance, wind proof, well fitting. The Black Diamond First Light Stretch Hoody checks all the boxes!

High Warmth to Weight Ratio: Black Diamond uses mapped PrimaLoft® Gold Active Insulation. Primaloft® Gold is one of the best synthetic insulators available with a CLO value of 0.92, which is roughly equivalent to the warmth of 500 or 550 fill-power down and achieves 98% thermal efficiency (and still retains heat if it gets wet, unlike down). The nylon shell fabric is lightweight and soft to the touch, allowing for the whole jacket to weight less than a pound. For a synthetic insulated hooded jacket this is quite impressive, so I give this a 5/5 in the warmth to weight ration category!

Black Diamond First Light Stretch Hoody Review

High Breathability: The biggest test of the breathability of this jacket came yesterday as I was breaking trail in thigh deep new snow from tree line to the summit cone on Mount Washington. Temps were 6 degrees Fahrenheit (-14 Celcius), winds were around 40 mph (64 Kph), and the wind chill was about -23 Fahrenheit (-30 Celcius). The uphill battle was slow going and a bit exhausting. I needed more than my base layers and soft shell jacket to stay comfortable but I was working pretty hard. I pulled this on over my soft shell and kept working uphill thinking I’d likely start to overheat soon and need to take it off. That didn’t happen and I reached the summit with it still on. So it is definitely breathable. I didn’t take it off until I was back to tree line and out of the wind for the quick walk back to the trailhead.

High Packability: While similar down jackets can pack smaller I prefer the extra insurance of synthetic for my light puffy jackets and only have one big down parka these days that is always in my pack for the most arctic of trips. Despite being a synthetic hooded jacket I am impressed with the Diamond First Light Stretch Hoody ability to get small. Without much coaching it will pack into it’s own zipper right side hand pocket at takes up just a little more space then your standard wide mouth Nalgene water bottle.

Decent Water Resistance: Black Diamond uses pretty standard PFC-free DWR Technology to give this jacket some water resistance. I was only exposed to a little dripping water on a warmish ascent of Hitchcock Gully earlier this year and as expected any drops that hit me just rolled off the fabric. Since it is a synthetic and not down I’m less concerned about how water resistant a light synthetic puffy is as I will still pack a hardshell if there is a significant chance of liquid precipitation on my trip.

Wind Proof: 100% this jacket is indeed windproof as I tested it in those 40+mph conditions I mentioned above. All I can really add here is I am impressed with how windproof the jacket seems while being so breathable at the same time. Must be the 20 denier fabric that Black Diamond used for the shell fabric, it just strikes the right balance in this regard.

Well Fitting: Ok I kind of saved the best for last here. I love the way this jacket fits and movies. Black Diamond says it’s a “regular” fit and while that means it isn’t supposed to fit like your tapered skinny jeans I don’t find the fit to be too bulky at all either. For my 5’9″ 185 pound frame the large fits over my skin layers and soft shell jacket perfectly. The length is perfect for tucking in under my climbing harness, and the stretchy panels under the arms keep in tucked in while I’m ice climbing and raising my hands far above my head often. The insulated hood is comfortable and well fitting with or without a climbing helmet on thanks to the drawcord adjustment. The fit is somehow technical while casual as I’ve found myself grabbing this jacket for everyday where and not just saving it for mountain missions.

Summary: The synthetic light weight hooded jacket is one of my favorite categories of gear to test. You can find many of my reviews of this style of jacket over the years on my review page. If your “light puffy” is ready for replacement or upgrade, or you have yet to add the “light puffy” to your outdoor wardrobe, I highly suggest you check the Black Diamond First Light Hooded Jacket out!

Buy Directly from Black Diamond

Buy from Moosejaw.com

Buy from Backcountry.com

See you in the mountains,

Northeast Alpine Start

Affiliate links above help support this blog. When you make a purchase through one of those links the author earns a small commission at no additional charge to you. Thank you.

Gear Review: Black Diamond AirNet Harness Review

Black Diamond AirNet Review


I like light pack-able gear so when I saw the new Black Diamond AirNet Harness I had to get my hands on one for a test drive. While this harness was designed and marketed towards high end sport and competition climbing (actually designed in collaboration with Adam Ondra for the Olympics) I’m willing to give up a few things for ultra-lightweight pack-ability. I now have three months of guiding with this harness and am ready to share what I think! Let’s start with the most noticeable features and then break down the minutia!


Weight

IMG_4872

Without a doubt you’ll think they forgot to put the harness in the package when it arrives at your door. Manufacturer listed weight is 8.3 ounces (235 grams). On my home scale my size large weighed 9 3/8 ounces (264 grams). This is about an ounce (40 grams) lighter than the Petzl Sitta. This harness is truly featherlight!

Pack-ability

Black Diamond AirNet Review

The construction and materials used in this harness allow it to easily fit into the included storage sack when folded up with room to spare. The measurements of the stuff sack when are about 6 x 3 x 3.5 inches, so this harness only takes up about 60 cubic inches in your pack. It is super pack-able!

Comfort

I went with a size large for my 34 inch waist. The patented “AirNet” technology definitely allows the full width of the waist belt (measured about 2 3/4 inches at widest) to distribute force during a leader fall or while hanging from a belay stance. Adjustable (via elastic) buckle-less leg loops (also measured about 2 3/4 inches at widest) distribute force when loaded but seem non-existent when just wearing the harness. In fact the harness is almost not noticeable when worn. I hiked many miles while wearing this harness and you can definitely forget you have it on.

Features I Liked

Other than the three things I mentioned above I liked the two pressure molded front gear loops, the auto adjusting butt straps (more like string), the great breathability of the material, and the unique “Infinity Belay Loop” which I’ve never seen before. Essentially it is low profile belay loop that is continuous and doesn’t have the traditional bar-tacking that can get caught when rotating it through the harness tie-in points. I also believe the Dynemma/Spectra type material the harness is constructed out of will lead to great than average life expectancy when compared to similar Nylon style harness!

Things I Would Have Liked

I wasn’t crazy about the super skinny low profile webbing used for the two rear gear loops. I understand this was a request from Adam who would cut his rear gear loops off to save weight (that’s dedication!). They worked for storing my “non-pro” things like cordelette, belay device, prussics, belay gloves, etc but they weren’t very easy to clip things to since they were so skinny and soft. And while this harness was not designed for ice climbing I would have loved two slits that I could add ice clippers to so I could carry this over to ice season.

Other Media

Summary/Who is this for?

Black Diamond AirNet Review

This is definitely a niche harness. Black Diamond states that this is the “ultimate competition and sport harness on the market” and it’s definitely a tough contender for that title! I also think those, like myself, who prioritize low weight and excellent pack-ability might be able to cross over into some traditional/alpine climbing use. I was able to comfortably carry my full rack up to a Black Diamond #3 Camelot with 10 alpine draws and my regular non-pro kit. If you’re carrying a double rack you’ll likely need to use a shoulder gear sling. If you need a more full featured harness for year round climbing check out my review of the Petzl Sitta.

If you’re looking to pickup an ultralight harness for non-winter use and don’t need enough space to carry a double rack you should check out the Black Diamond AirNet Harness!

Buy from Backcountry

Buy from REI

See you in the mountains!

Northeast Alpine Start

A media sample was provided for purposes of review. All opinions are my own. Affiliate links help support this blog and the author receives a small commission when you make a purchase through them. Thank you!