Core Merino 330 Zip-Off Bottom Reviews

Christopher.C.Perry P.

Apr 1, 2026

4/5

Better then expected

I wanted a thermal I could take on and off without taking my boots off. The warmth that these provided were a pleasant surprise. Great quality I bought the matching top after using these.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 221 lbs - 250lbs

Fit: True to size

Color: Colt · Size: L

Martin L.

Mar 22, 2026

5/5

Very versatile and warm

I wore these on several hunts this year in temps from the teens to the low 30’s. My legs stayed warm. When I got too warm, like going inside, I’d just zip them off easy peasy. No need to even take my boots off. Love them!

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs

Fit: True to size

Color: Colt · Size: XL

Gene W.

Apr 1, 2026

5/5

True to size. They are

True to size. They are warm and comfortable. I am very happy with this purchase.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 221 lbs - 250lbs

Fit: True to size

Color: Colt · Size: XL

Michael B.

Mar 17, 2026

5/5

Mike

Keeps you very warm and I love that they can be removed when it warms up

Verified Buyer

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: True to size

Color: Colt · Size: XXL

Dan E.

Mar 22, 2026

5/5

Core 330

Quality

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 161 lbs - 190lbs

Fit: True to size

Color: Colt · Size: XL

Scott A.

Nov 15, 2025

5/5

Better than expected

Love these. Only bought these because the non zip off was sold out. But , Best baselayer ever because they zip off without taking everything off! So convenient to drag out deer or hang a stand in the pm. When it's warmer. A tad bit tight in the thighs, so might need to go up a size.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: Runs small

Byron K.

Nov 7, 2025

5/5

Zip off Merino 330

Got to use these on a cold elk hunt that ended up being more active than anticipated. Started with them on and they did their job of keeping me warm. We spotted cow elk across a canyon and got to chasing them down. After about a mile, I was too hot. I was able to shed these things quick and lost no time. Perfect addition to my gear.

Verified Buyer

Height: 6' - 6'2'' · Weight: 281 lbs - 310lbs

Fit: True to size

Mike H.

Nov 13, 2025

5/5

Must have for big temp swing hunting days

Love these bottoms. Great for cold mornings and then later in the day just lower your pants and zip them off. Or later in the day when the temp drops zip them back on. comfortable as well.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs

Fit: True to size

Brandon K.

Nov 10, 2025

3/5

Capri model seems goofy

Not sure why these aren’t full length. I suppose because they are zippers nobody wants to untie their boots to get them off or the zipper line would be uncomfortable tucked into boots. Fit loose. Wouldn’t buy another pair for the money

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: Runs big

Jack C.

Nov 18, 2025

5/5

Core merino 330 zip off bottoms

I love the feel of these but they were a little big on me. Probably my fault for ordering the wrong size

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: Runs big

Robert G.

Nov 30, 2025

5/5

330 merino

Warm and fits the purpose. Good purchase

Verified Buyer

Height: 6'3'' - 6'5'' · Weight: 191 lbs - 220lbs

Fit: True to size

Tommy X.

Nov 17, 2025

5/5

Best bottom

Must have bottom for layering. Zippers are very nice

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs

Fit: True to size

Jeremy E.

Nov 12, 2025

5/5

Keeps you warm while glassing

Keeps you warm while glassing but easily removed when getting ready for a stalk or weather warms up during the day

Verified Buyer

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: True to size

Patrick K.

Dec 5, 2025

5/5

Perfect, period

Great idea and perfect execution. 5/5 stars

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Shane T.

Nov 5, 2025

5/5

Perfect to start the day

Perfect to start the day in 25° weather with a short hike, sit all morning and not be too much once temps reached 40-40°

Verified Buyer

Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs

Fit: True to size

Scott s.

Sep 25, 2025

5/5

Great concept!

If you hunted long at all you’ve had those days when it’s freezing cold that morning and warms up drastically in the afternoon. Well Sitka has come up with the answer with this base layer. Easy to take off without having to undress to do it, not to mention how warm and comfortable they are.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Ryan C.

Sep 2, 2025

5/5

High Quality

Hello, I use Sitka hiking / hunting clothes as my regular daily clothes, and when day hiking, or rugged long distance hiking. I highly recommend using Sitka clothes as your daily clothes, if you can. Sitka hunting / hiking clothes are great, high quality clothes, that are fully worth what we pay for it's price. Thank you - Ryan

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs

Fit: True to size

Yuliya K.

Dec 4, 2025

5/5

Klass

Super

Verified Buyer

Height: below 5' · Weight: Above 340 lbs

Fit: Runs small

John M.

Nov 21, 2025

5/5

Worked extremely well!

Worked extremely well!

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

Brian O.

Oct 26, 2025

5/5

Great design

The way the zippers curve towards the front make these better than other zip off leggings

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

Jase K.

Oct 27, 2025

4/5

Warm Thermals

Comfortable and warm, can't feel zippers against your skin which is nice.

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Serik B.

Nov 26, 2025

5/5

Nice

Nice

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Glenn B.

Sep 16, 2025

5/5

Core Merino 330 Zip-Off Bottom.

I recomend these zip off bottoms, I hike in to my stand and once I get there. I don't have to take off pants to put bottoms on. They keep me warm enough that I don't have to carry my insulated bibs.

Verified Buyer

Height: 6' - 6'2'' · Weight: 251 lbs - 280lbs

Fit: True to size

Trace d.

Oct 19, 2025

5/5

Warmest long johns I have

Warmest long johns I have ever had.

Verified Buyer

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: True to size

Ethan B.

Sep 29, 2025

5/5

These are awesome. Super lightweight

These are awesome. Super lightweight and warm. The zippers are very low profile and it’s super easy to take them off

Verified Buyer

Height: 6' - 6'2'' · Weight: 131 lbs - 160lbs

Fit: True to size

Joseph C.

Sep 28, 2025

5/5

The perfect base layer for

The perfect base layer for transitioning from low to high exertion hunting.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs

Fit: True to size

Scott N.

Sep 30, 2025

5/5

Perfect

The length is great

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Clint K.

Jun 14, 2025

5/5

Soft and love the ¾ length

Bought them in the summer so I haven’t warm them in cold weather yet, but they seem warm around the house. I actually bought these for snowboarding and believe they will make the best base layer to keep me warm.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

JAMES L.

Jun 26, 2025

5/5

Feel and fit GREAT!!! Waiting

Feel and fit GREAT!!! Waiting on winter time for the real test.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Zach S.

May 1, 2025

5/5

Core Merino 330 Zip-Off

Integrated at its finest go ahead and add to cart thank me later

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Steven H.

May 1, 2025

5/5

Good base layer the zip

Good base layer the zip off option is very handy

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs

Fit: True to size

James S.

Feb 2, 2025

4/5

Warm

The zip off design is handy. They zippers could land somewhere better for the sake of rubbing. As for the warmth this is a decent piece. The material feels slick enough to go under other pants without hanging. The ankle part flares out for pretty fat calves and is a bit awkward compared to rest of the fit.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 161 lbs - 190lbs

Fit: True to size

Steven B.

May 2, 2025

5/5

Impressive

Impressive

Verified Buyer

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: True to size

Brandon B.

Mar 7, 2025

5/5

Easy peasy

These are great pants. They are really warm and so easy to take off without the hassle of removing your boots and pants.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 161 lbs - 190lbs

Fit: True to size

Blake G.

Jan 4, 2025

5/5

New Faves

I've always cut my long johns to just above or below my knees so these are everything I ever dreamed of! The zip off feature was HUGE during a recent stay at a Forest Service cabin. I didn't want to take my boots off yet because I was still chopping wood, but it was time to shed some warmth. I have size large and it is the right size for me. My waist is creeping up toward a 36 right now.

Verified Buyer

Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs

Fit: True to size

Owen M.

Dec 26, 2024

5/5

Great base layer

Fits great, the zippers are ergonomic and out of the way, but easy to use when you're putting them on or taking them off. Warmth wise, they're about what I expected. Under the timberline's, they're too warm to hike in, but too cold to glass in unless I add a puffy. Perfect for low output still hunting in cold, but not terribly windy conditions which is what I got em for. 6'3, 210, 33/34 pants, the large fit well.

Verified Buyer

Height: 6'3'' - 6'5'' · Weight: 191 lbs - 220lbs

Fit: True to size

Ian W.

Jan 5, 2025

5/5

Not so cold Marine

Being in the Marine Corps where I have stop and go often in the field, these warming layers make a huge difference when saving time in between movements. The convenience of not having to take off my boots and trousers is a huge game changer.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 131 lbs - 160lbs

Fit: True to size

Justin M.

Jan 3, 2025

5/5

Great long john idea!

I always struggled with socks under LJ's or other way around, and frequently when I sat down they pulled tight on my legs. Both problems solved! This simple yet brilliant design prevents the sock/LJ/boot tangling, yet provides warmth where needed, and has the additional benefit of being easily removable. I wondered about the comfort of zippers, but they have covered the areas that might irritate with strategically placed cloth. 6 stars deserved!

Verified Buyer

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: True to size

Cory B.

Dec 21, 2024

5/5

great pants but. . .

I just wish they offered these without the zip off option. I bought these to wear when skiing and fly fishing - two sports that involve relatively high boots. that zipper lives right around the area where your ski boots or wading boots ride which I can occasionally feel digging in but overall they're pretty nice base layers

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Sean K.

Jan 27, 2025

5/5

Sitka Zip-Up Marino Wool

Incredible, wore in below freezing for multiple days straight and my legs were never cold. Also, the zip up feature is incredibly convenient.

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Richard D.

Feb 8, 2025

5/5

Core merino 330 zip-off

Good product. Comfortable and warm

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: Runs big

Pete J.

Dec 15, 2024

5/5

Core Merino 330 Zip-Off Bottm

Absolutely the best, most convenient base layer I own. So fast and easy to put on or take off with fast changing temps.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

John S.

Dec 26, 2024

5/5

Great product!

Love this! I can quickly zip it off for the walk out. I wear over a base layer and under stratus pants and have never been cold so far down to 27 degrees.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Jonathan W.

Jan 9, 2025

5/5

What a great addition!

Great to wear on cold mornings and take off in the woods when temps rise

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 161 lbs - 190lbs

Fit: True to size

Chris T.

Nov 19, 2024

5/5

Functional and warm

I purchased these for a passive, treestand style Iowa archery hunt, temps in the low 30s in the mornings and 50s in the afternoons. These were a perfect weight combined with the Stratus pants for these conditions. Mid-day I took advantage of the full zips to remove w/o having to take boots off. I look forward to using these in a western hunting application. I can see starting off with these from a spike camp/glassing point and unzipping them when things start getting more, warming up midday. Solid product.

Verified Buyer

Height: 6'3'' - 6'5'' · Weight: 191 lbs - 220lbs

Fit: True to size

Zach J.

Nov 11, 2024

5/5

Zip-off's are key

Got these for 2nd rifle in Colorado for an Elk hunt at about 11,000ft. Weather was unusually warm this year and I didn't need to use them. However, from experience in military I know that being able to remove these on the fly/'in the field' makes life much easier when going from a cold early morning to a warmer afternoon. Essentially, the zip-off feature makes these usable in a much wider variety of climates than traditional base layers. If you want/need a base layer, then you might as pay a little more and get the zip-off feature.

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Charles N.

Dec 29, 2024

5/5

Size is perfect. Zippers are

Size is perfect. Zippers are secure. Nice and warm

Verified Buyer

Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs

Fit: True to size

John M.

Jan 11, 2025

5/5

Get them

Get them bc they’re awesome.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

Anthony O.

Nov 18, 2024

5/5

Excellent piece.

Another great addition to the system perfect for those days with large temperature swings. No need to remove boots to shed or add layers.

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Damian P.

Oct 24, 2024

5/5

330 zip off bottoms

Very comfortable warm and convenient to take off when the temps start to rise highly recommend worth every penny.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs

Fit: True to size