Obsidian Merino Pants – First Lite Performance Hunting
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Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants
Obsidian Merino Pants

Obsidian Merino Pants

Ripstop Merino and Stretch Nylon


Color/PatternFirst Lite Cipher

Silent, odor resistant, and comfortable from 100 degrees into late season, the Obsidian merino pant takes the torch from the best-selling Kanab 2.0 pant with the fit being based off our hugely popular Corrugate Guide Pant. The Obsidian's ergonomic design and proprietary, stretch merino/nylon fabric work in conjunction to move and flex with the body and provide maximum durability all while preserving the qualities you love about Merino. Reinforced with rip-stop nylon, this woven merino pant has no UV signature or shine and fends off odor-causing bacteria better than any synthetic. Stretch nylon panels also enhance range of motion and provide durability and support in high stress areas. The Obsidian pant is equipped with detachable suspenders for a superior fit with pack or harness and can be used with other First Lite pants. This piece is machine washable and will dry quickly over a branch or on a line. These features make the Obsidian a superior choice for a wide range of stationary and active hunting applications.

Product Videos

Obsidian Merino Pants Details

Layering Position

  • Next to Skin


  • True to Size: Purchase your normal size to wear over or under other layers
  • Merino-nylon midweight woven ripstop fabric
  • Body-mapped stretch nylon reinforcement
  • Belt and suspender loops (suspenders included)
  • Naturally odor resistant
  • Extremely quiet--ideal for both spot and stalk and stationary hunting
  • Naturally UV absorbent to eliminate shine and fire resistant
  • Stays warm whether dry or wet

How It's Built

  • Material: Woven Ripstop Merino Blend
  • Cut: Athletic
  • Primary Uses:
    • Spot & Stalk
    • Tree Stand
    • Upland
    • Fishing
  • Weight: 22oz.

Where to Use

  • Regions:
    • Intermountain/Rockies
    • Southwest
    • Midwest
    • Northeast
    • BC/Alaska
    • Pacific Northwest
    • Southeast
  • Temperature Ranges:
    • 20F - 45F
    • 45F - 60F
    • 60F - 80F
    • Above 80F

Customer Reviews

Based on 456 reviews
Product Size: 34 x 32
Height: 6'0"
Weight: 180
Location: Oklahoma
Primary Use: Hunting back packing
Great Early/Mid season pant

I have tested these in the field and was impressed with the ease of climbing a tree in these pants. Great mobility, light weight and breath well in the hot humid early season here in northeast Oklahoma. With a good base layer this should be a good pant for mid season hunts. However, the wind will be an issue when those cold fronts bring that brisk northeastern winds in late October and November. Might have to look into a good set of First Light solitude Bibs for those days.

I am a slim moderat build so the first light sizing are pretty spot on. Sleeves for the pants are a bit long but when I have my boots on there seems to be little issue for me. I am 6'0" so some who might ne a bit shorter might have a bit of am issue.

Overall this will be a versitile pant. I can see my self taking these pants out West as well as some fall and Spring backpack trips in the woods. They are quiet for the material they are made of, I see no issue for my white tail hunts this comming season.

Product Size: M
Height: 6’0”
Weight: 180-190
Fit Comments: Fit fit
Location: Nevada
Primary Use: Mule deer
Forget Kuiu, get yourself some Firstlite.

I’m very picky about the fit of my pants. I’m 6’0” and weigh 180lbs-190lbs. On my journey to find the perfect pair, I picked up two pairs of Kuiu pants thinking that they would be the best that money could buy. But when I put them on, I felt like I’d been tricked. Even though I’d ordered my correct size, the waist sat scandalously low, the crotch was insanely shallow, the thighs were tight, and the cuffs at the ankles flared out like bell bottoms. Im not a particularly thicc dude, I’ve just got cycling legs. But they felt like women’s disco pants. I realize that boot cut exists for a reason, but unless you’re wearing ski boots, they were overkill. Not to mention the permanent (and simultaneous) wedgie, plumber’s crack, and genitals being forcefully corralled into one pant leg or the other. Then my friend told me that his Firstlite Obsidian pants had a more tapered leg and a bit more thigh and booty room, so I gave them a shot. These are exactly the fit I’ve been looking for. The thighs and seat have the perfect amount of acreage to be form fitting while not being at all tight, and give me full range of motion without any resistance. The legs taper down to the boots slightly, and my Danners fit nicely into the cuff without feeling like rodeo chaps. The fabric is tough, has some stretch to it, and retains its shape well. I’m sticking with Firstlite pants from here on out.

Product Size: M
Height: 6'2
Weight: 175
Fit Comments: Crotch is tight
Location: Woods
Primary Use: Hunting
Not sure on fit

I'm a 33/34 and the M is tight in the crotch. I really want to like these, but have to send back and hope the large isn't too big.

Product Size: L
Height: 5-10
Weight: 230
Fit Comments: Small in the thighs and legs for me. I have muscular build with thick legs. My waist is a 36". The waist barely fit me. I'm afraid that an XL would be too loose in the waist and still not fit my legs. I have the Corrugate in a L and it fits perfectly. The cut in these are much slimmer.
Location: Didn't get the chance to use it.
Primary Use: Intended for Hunting
Sized for small legs and thighs

I have a L in the Corrugate guide pant that is perfect on me. This in a L was a no go. It is cut very slim in the legs from the thigh down. I'll be sending this back and won't be getting a bigger size as I can tell that the cut will still be too slim in the legs while being too big in the waist. Shame, as I like the material, features and feel of the pants. Would have been a good early and mid season pant.

Product Size: 36 x 35
Height: 6'7"
Weight: 225
Fit Comments: No restrictions, highly mobile. Excellent fit.
Location: From the waist down, usually.
Weak stitching, frayed seams

These pants fit great, feel great and are everything they are advertised to be, except for one thing. The stitching is weak. The material is unique, but the sewing is poorly done. There are many seams in these pants, and almost every one of them has a loose thread on it. I had not even worn the pants yet when I noticed the threads were loose and could be snagged. I clipped what I could, then packed the pants for my first trip to Alaska. We went on a 3-mile hike on a trail, and by the time we were done, more loose threads were found. These range from stitches that have failed already (only wearing the pants ONCE for a hike), to loose threads just waiting to be snagged on something.

I am genuinely concerned these pants will rip the first time go hunting, which would suck. And I doubt it will be the merino material...it will be a seam that gives out. I look at other reviews with similar concerns about durability and ripping. I think it's only a matter of time, unfortunately.

Again, the pants fit great and look awesome. The stitching itself is what needs correction, and I hope FirstLite remedies this flaw.