Thomas P.
Nov 24, 2025
5/5
I was looking for a comfortable merino base layer and absolutely found it in the Core Merino 330. It’s heavy enough to keep me warm and the soft lining makes it very comfortable close to skin. This has become my go-to piece when the weather turns cold. I typically wear a Large and was pleased with the fit. If you want more room, size up.
Verified Buyer
Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs
Fit: True to size
Roger S.
Mar 17, 2026
5/5
Love this product
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs
Fit: True to size
Color: Optifade Subalpine · Size: XXL
Tom G.
Mar 17, 2026
5/5
Very comfortable. Warm
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 251 lbs - 280lbs
Fit: True to size
Color: Colt · Size: XXL
Matthew G.
Mar 17, 2026
5/5
Is super warm
Verified Buyer
Height: 6' - 6'2'' · Weight: 251 lbs - 280lbs
Fit: True to size
Color: Cypress Green · Size: XXL
Dan E.
Mar 17, 2026
5/5
Sitka quality.
Verified Buyer
Weight: 161 lbs - 190lbs
Fit: True to size
Color: Optifade Elevated II · Size: L
David B.
Mar 17, 2026
5/5
Nicely made
Verified Buyer
Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs
Fit: True to size
Color: Optifade Subalpine · Size: XL
Parker P.
Mar 17, 2026
5/5
Comfortable
Verified Buyer
Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs
Fit: True to size
Color: Optifade Elevated II · Size: XL
David J.
Mar 22, 2026
5/5
Great buy
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 131 lbs - 160lbs
Fit: True to size
Color: Cypress Green · Size: XL
Richard O.
Mar 17, 2026
4/5
Great fit
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 161 lbs - 190lbs
Fit: True to size
Color: Optifade Subalpine · Size: XL
Brian G.
Mar 17, 2026
5/5
Awesome!
Verified Buyer
Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs
Fit: True to size
Color: Earth · Size: XL
Chad R.
Mar 16, 2026
4/5
Solid
Verified Buyer
Height: 5'3'' - 5'5'' · Weight: 191 lbs - 220lbs
Fit: True to size
Color: Optifade Waterfowl Marsh · Size: L
Dylan S.
Nov 20, 2025
5/5
Started out with the 220 core merino but was wanting something that was a little bit warmer and the 330 does not disappoint. There's a noticeable weight difference between the 220 and 330 and it retains heat well for the cold mornings. Great quality material as always from Sitka. Highly recommend.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs
Fit: True to size
Jeff S.
Dec 7, 2025
5/5
I've used it for a week now and it's the best base layer I've owned. Our average temps run from the 20sto 40s this time of year. No itchand very little odor. Seems to dry quickly. Will buy another!
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs
Fit: True to size
Jarrett M.
Nov 24, 2025
5/5
I bought this product a few weeks ago for hunting in Ohio. I'm a big guy, it fits perfectly, so much nicer having to wear less cloths now. I got the matching base layer pants, pants, hoodie, and gloves. Compared to having 15 layers on to stay warm.
Verified Buyer
Height: 6' - 6'2'' · Weight: Above 340 lbs
Fit: True to size
Greg R.
Nov 18, 2025
5/5
The 330 is the perfect layer. We had a cool goose hunt that turned bluebird by noon. I shed the over coat and finished the day in perfect start-finish. Under jacket this was a very comfortable fit with ease of movement and no fabric gathering in shoulder/elbow like my wool sweater. Thank You *****
Verified Buyer
Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs
Fit: True to size
Grant O.
Nov 28, 2025
5/5
Fits great, have used it cold weather pheasant hunting in North Dakota. Does a great job wicking sweat away, love it. Have also used it at some cold outdoor October / November football games and stayed very warm.
Verified Buyer
Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs
Fit: True to size
Sean E.
Nov 17, 2025
5/5
Very comfortable. Very warm for the weight/bulk. Can wear only this upper while hiking down to about 30 degrees. Throw on a coat when stopped. This and the jetstream are all I need for active hunts with short glassing periods. For long glassing periods I add one more layer. 6'3" 270lbs. 2XL is slightly baggy. Runs larger than other sitka products IMO.
Verified Buyer
Height: 6'3'' - 6'5'' · Weight: 251 lbs - 280lbs
Fit: Runs big
Josh S.
Nov 14, 2025
4/5
Good base layer, super comfortable. My only complaint is it doesn't come in tall sizes so I needed to size up in order for it to fit. That kinda takes away from how well it works since you want base layers tight. Would be a great piece if it fit a little better. Will still be using it regardless.
Verified Buyer
Height: 6'3'' - 6'5'' · Weight: 191 lbs - 220lbs
Fit: True to size
Jack C.
Nov 18, 2025
5/5
I always thought my carhart base layers were good enough and there was no need to upgrade to more expensive Sitka. I always thought they’re nitch was outerwear and there was no need to shell out extra money for their base layer products. I was wrong this is so comfortable and warm, but I don’t overheat easily. Part of me wants to sleep in this. Also it doesn’t smell which is advantageous in whitetail woods. I’m buying another for my dad for Christmas who doesn’t even hunt but I know he’ll love it around the house and yard. A little pricey, but worth the money to me.
Verified Buyer
Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs
Fit: True to size
James G.
Nov 15, 2025
5/5
I love this shirt. This is the second one I purchased. It's soft and warm and feels great against my skin. When I ordered it there was not an option for a solid green or heather green/brown or I would have ordered one for everyday use also. I highly recommend this shirt.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
Neil S.
Nov 16, 2025
5/5
Love this color and the half Zip. Merino is very soft and quite warm. I wear as both base layer and outer. This is my second one and the first is still in great shape. When you can buy Sitka on sale it is a tremendous value.
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs
Fit: True to size
Scott A.
Nov 15, 2025
5/5
Fits great and the size proportion is good. Bought the XL. Love the half zip for the walk into the stand. Great 2nd baselayer on colder sits also. Also the longer cuffs around your thumbs are petfect.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
Nicholas L.
Nov 12, 2025
5/5
Had 40 mph winds and temps in the 40’s yesterday. Figured I try them out with my Stratus bibs and coat. That was it. They did their job! Now granted I was in a shooting house, but didn’t need the heater and was comfortable to and from on the 4 wheeler
Verified Buyer
Height: 6' - 6'2'' · Weight: 251 lbs - 280lbs
Fit: True to size
Duane J.
Nov 25, 2025
5/5
Fits well and is warm. Make sure temps are low enough or especially you will overheat. Good quality materials as usual.
Verified Buyer
Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs
Fit: True to size
Frank W.
Nov 14, 2025
5/5
This is the best heavyweight merino in my opinion. I have First Lite Furnace pieces as a comparison. To me, the Core 330 is very warm and much more comfortable on my skin than the Furnace.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs
Fit: True to size
Jacob L.
Nov 24, 2025
5/5
The perfect mid layer for high mountain hunting, wicks sweat away a essential piece
Verified Buyer
Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs
Fit: True to size
Mike M.
Nov 17, 2025
5/5
I recommend buying both the half-zip and the lower matching bottoms. These two are a great combination for a warm hunt!
Verified Buyer
Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs
Fit: True to size
Jim M.
Nov 24, 2025
5/5
Warm and comfy and good quality. Size medium is a good fit. Plan to get another one for sure.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs
Fit: True to size
Preston M.
Dec 8, 2025
5/5
Kept me warm in 20° and didn’t notice it getting me too hot when the temps warmed in the midday
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
Jeffrey T.
Nov 16, 2025
5/5
Very warm and lightweight really satisfied with this purchase would recommend this to any hunter or anyone that spends time outdoors
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
Steve N.
Nov 21, 2025
5/5
This garment feels great and is very warm, I really like the zipper to vent body heat when I am walking.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
Daniel F.
Nov 22, 2025
5/5
Great base layer. Kept me warm down in to the 30’s with only Fanatic hoodie as outer layer. Very comfortable as well.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs
Fit: True to size
Gary V.
Nov 6, 2025
5/5
I purchased the 330 zip t neck to wear in colder weather but the wool does regulate based on body temp and activity Very warm and the fit was good I would buy again
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs
Fit: True to size
WALDEN H.
Nov 12, 2025
5/5
Very warm and comfortable. Well thought out design as usual. Coldest day, 220 marino, this 330 marino and the Fanatic hoody is more than enough layering.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs
Fit: True to size
Weston D.
Nov 23, 2025
5/5
Significantly warmer than the 220 and worth the purchase. Great base layer for those cold days.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
Dylan I.
Nov 24, 2025
5/5
I do really like this base layer Really fits well and keeps me warm
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs
Fit: True to size
Kelli B.
Dec 8, 2025
5/5
Great pullover. Very comfortable.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs
Fit: True to size
Randall M.
Nov 27, 2025
5/5
Great as a base layer or single layer when temps aren’t cold.
Verified Buyer
Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs
Fit: True to size
Brian S.
Nov 17, 2025
5/5
Soft supple and warm. Sitka produces a great quality merino.
Verified Buyer
Height: 6'3'' - 6'5'' · Weight: 161 lbs - 190lbs
Fit: True to size
Zeke S.
Nov 17, 2025
5/5
This piece is a perfect thermal layer but I wear it the most as an everyday work shirt! 220 pounds 5’11” xl fits great
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs
Fit: True to size
louis s.
Nov 19, 2025
5/5
It a awesome part of my Sitka gear my next purchase will be the 330 Nero wool hoodie keep up the good work
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs
Fit: Runs small
Jim C.
Nov 17, 2025
5/5
Very comfortable and perfect for early season or as a base layer for colder temps!
Verified Buyer
Height: 5'6'' - 5'8'' · Weight: 221 lbs - 250lbs
Fit: True to size
Matthew W.
Nov 17, 2025
5/5
Perfect for a cold weather sits as a tight and snug base layer. Just what I needed.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs
Fit: True to size
Jacob P.
Oct 12, 2025
5/5
I have the top and bottom 330 merino baselayers and I love them for mid to late season archery here in central Illinois. They don't restrict my full range of motion, they are very warm, absorb perspiration, and do not itch. I'm 6'1 and 170 lbs and wear a large top with a medium bottom.
Verified Buyer
Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs
Fit: True to size
Cory
Sep 23, 2025
4/5
Order a size bigger than normal. I’m a med went with a large and the fit is so much better. I’ve worn the 330 set if a couple of early morning goose hunts that went as low as 55 degrees. Loved the quarter size, you don’t feel the chocking like the other brands. The only thing I have to figure out if the smell. I’ve washed the set once. I don’t want to over wash so I hang them out size on the clothes line. But the base layers stink really bad if you sweat. Heads up on that. Others than that I am happy so far.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs
Fit: Runs small
Zach P.
Nov 19, 2025
5/5
Excellent base layer. Very comfortable and will help me stay in the treestand all winter.
Verified Buyer
Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs
Fit: True to size
Blake M.
Dec 30, 2025
5/5
Great
Verified Buyer
Height: 6' - 6'2'' · Weight: Above 340 lbs
Fit: True to size
Mason I.
Dec 2, 2025
5/5
Super warm and great base layer!
Verified Buyer
Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs
Fit: True to size
Chad L.
Nov 25, 2025
5/5
Very warm and comfortable. My favorite base layer!
Verified Buyer
Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs
Fit: True to size
Damian F.
Nov 17, 2025
5/5
Nice and Light, Warm Enough for calm 40-45 degree days. Nice Piece to Layer With
Verified Buyer
Height: 6' - 6'2'' · Weight: 311 lbs - 340lbs
Fit: True to size