A sweat-wicking baselayer with thermal reflectors, ergonomic stitching, and 4-way stretch fabric. Read more >
Magic in a littlesilver dot.
Breathable material with little silver dots that reflect body heat.
Pulls moisture away from the body so sweat can evaporate quickly.
ESSENTIAL BASELAYERAdventure longer in this crew-neck, Performance Fit baselayer with our thermal-reflective lining that warms you to the bone.MOISTURE-WICKINGThe ultra-wicking fabric moves the sweat away from your body fast so that you can stay dry. PERFORMANCE FITThe body-contouring, ergonomic fit and 4-way comfort-stretch fabric is made to move.Features:
- Omni-Heat™ thermal reflective
- 4-way comfort stretch
- Ergonomic seaming
- Flatlocked construction
- Antimicrobial treatment protects this product from bacterial growth
- Performance Fit
- Center Back Length: 29"
- Style# 1638541
- 85% polyester / 15% elastane stretch waffle Omni-Heat Reflective™
- 85% polyester / 15% elastane Omni-Wick™ Stretch Jersey
Size & Fit
Measurement & Sizes (Inches)
- 1. Neck: Measure at the base or thickest part of your neck.
- 2. Sleeves: Start at the center back of your neck and measure across the shoulder and down to the wrist. Round up to the next even number.
- 3. Chest/Bust: Measure at the fullest part of the chest, under the armpits and over the shoulder blades, keeping the tape measure firm and level.
- 4. Waist: Measure around the natural waistline, allowing the tape measure to sit comfortably.
- 5. Hips: Measure around the fullest part of your hips.
- 6. Inseam: Measure from the top of the interior leg to the bottom of the ankle.
Performance Body contouring fit conforms to movement.
Active Body skimming fit with end-use mobility in mind.
Modern Classic / Regular Universal, easy fit for comfortable range of motion.
Relaxed Most generous fit for a full spectrum of movement.
Shipping & Returns
|Shipping Method||Rate||Expected Delivery Time|
|Ground||$6.00||3-7 Business Days|
|2-Day Air||$12.00||2-3 Business Days|
|Overnight||$19.00||1-2 Business Days|
|FREE Standard Shipping||Available for Greater Rewards members. Learn more >|
Returns are accepted within 60 days of the purchase date online. Your apparel must be in original and unworn condition, with tags still attached. Footwear returns must also include the original box.
Still Have Questions
See our Customer Service section for more details.
Men’s Heavyweight II Stretch Baselayer Long Sleeve Shirt is rated out of 5 by 36.
Rated 5 out of 5 by ChrisM12 from Warm Very warm, comfortable. Love how light weight it is and is perfect for layering.
Date published: 2018-11-08
Rated 5 out of 5 by Smittie from Core warmth This product coupled with Heavy Duty Omni Heat Tights provide essential and complete protection from the cold water of Fall and Winter fly fishing in 40 degree water. Worn under high quality waders ( Simms) I have simply not found a better base layer. In extreme cold add an Omni Heat wind block and water proof jacket and you are set for the day
Date published: 2018-11-07
Rated 5 out of 5 by MarkMustang from Nice for running Is a fit baselayer and protec very well; is perfect to do exercise everywhere; look very nice
Date published: 2018-10-31
Rated 5 out of 5 by TheNorthFaceGirl from Great top Perfect baselayer, comfy and soft. Husband will be taking it to the U.K. in December.
Date published: 2018-08-30
Rated 5 out of 5 by Xray21 from Warm and dry It's real comfy and keeps me warm. The omni-wick technology keeps me from sweating if it gets too warm but it's cold here in MN so this is a great addition during those winter months. Great quality and fits nicely.
Date published: 2018-08-25
Rated 5 out of 5 by Jumpstreet1 from Warm Excellent product for cold.
Date published: 2018-04-03
Rated 5 out of 5 by BillD from Warm Ski Day I wore this baselayer top on a March ski trip in Vermont with 18 degree temps and 40 mph winds at the summit. I HIGHLY recommend as I wore this with a turtleneck top under a Columbia jacket. The comfort and warmth exceeded my expectations.
Date published: 2018-03-22
Rated 5 out of 5 by TreyC from Great baselayer Excellent baselayer top for very cold weather Andrew breathable enough to keep you from sweating.
Date published: 2018-03-18
Rated 5 out of 5 by BobbaLouie from Perfect for COLD Skiing Wore this on 4 cold Tahoe Ski mornings (0 ~ 5F at 8a), and it kept me perfectly comfortable. And it remained comfortable into the PM when temps approached 40F. I'm 41 inches at the chest, and a medium fits fine. Hope it lasts forever, like my other Columbia gear.
Date published: 2018-03-08
Rated 5 out of 5 by Rojaho from Baselayer top Feels good and helps keep me warm.
Date published: 2018-03-07
Rated 5 out of 5 by BIL417 from Third one My husband is usually a small in Columbia shirts but he wears a medium in this one. I just bought him his third so that says a lot. It keeps him warm throughout the long WI winter. I line dry them and fluff in the dryer. I definitely would recommend this shirt.
Date published: 2018-03-04
Rated 5 out of 5 by Rickey from Shirt Off my Back Gave mine to my nephew who has severe joint pain, provided comfort and warmth to ease his discomfort. Purchased replacement for myself.
Date published: 2018-02-08
Rated 5 out of 5 by Soundchasr from Great, lightweight base layer Great, lightweight base layer. Runs very small for me. I wear an XL in other Columbia shirts but for these, I need an XL from Big and Tall. Not sure why.
Date published: 2018-02-04
Rated 5 out of 5 by Skibum48 from Heavy Omni Heat base layer. Very warm and comfortable. Snug fit, but does not bind or restrict motion. Wears like iron. Would recommend to anyone who plays or works in COLD weather. Mine are used for skiing.
Date published: 2018-01-14
Rated 5 out of 5 by Score from ISP This is the second one of these I have purchased for my son-in-law who is a State Trooper in Idaho. He loves it for those times when he has to stop to help a stranded motorist, or rescue someone who has slid off the icy roads, or when he stops someone doing stupid stuff in sub-freezing weather!
Date published: 2017-12-29
Rated 5 out of 5 by Scott436 from Great winter product I purchased this item and tyre bottoms for an excursion to Oregon during the holidays. They excreted my expectations almost immediately. I am going to purchase another set. My wife purchased a pair also.
Date published: 2017-12-28
Rated 4 out of 5 by garyk009 from Omni-Heat Base Layer Thermal I tried this out in 30 degree F temperature as soon as I received it. I wore it as my base layer and used a Columbia fleece vest as my top layer. I ended doing some yard work and could tell within 10 minutes I was staying much warmer than I would have with just a basic thermal shirt. I also wore it out later that night as we sat on the back deck with our friends and again, I was warmer than expected. I will say it did not keep me as warm as when I was moving more often but I will definitely be using this as my baselayer for cold weather hiking and kayaking.
Date published: 2017-11-30
Rated 5 out of 5 by rivka from army my grandson is a paratrooper and finds this product amazing in the field.thanks for making an amazing product
Date published: 2017-11-09
Rated 4 out of 5 by HoodEast from Base Layer taken to the next level I've had many base layers in my 35 years of staying warm in the extreme cold. Many have served their purpose for the most part, but have lacked in varying elements. I've finally found exactly what I need - whether it be for skiing, climbing, or just being in the cold weather. The men's heavyweight base layer from Columbia provides reliable resistance to the cold, while aiding in warming you up a bit more with the Omni heat interior. It's a crazy concept to wrap your head around before experiencing it, but let me tell you, it works! The base layer doesn't absorb moisture either and breathes well going out, but is wind resistant when you are switching out layers and exposed directly to the weather. I'd highly recommend this to anyone looking for a solve all base layer.
Date published: 2017-11-09
Rated 5 out of 5 by Chase1783 from Runs Small in Comparison to other Men's Columbia Apparel I own a couple of Columbia shirts and jackets and I find the size of the base layer top to be off/not consistent with other Columbia tops. I find most Columbia jackets fit me best in medium while polo's and button ups vary between medium and large depending on cut and style. I purchased the heavyweight base layer in medium for two reasons I wanted it to fit snug due to being a base layer and experience with other shirts and tops taught me that large would be to big. This material does not flex or give and I couldn't even fit into the top (I would say it fits like a small).
Date published: 2017-10-23
Rated 5 out of 5 by Boro from Very comfortable I have been wearing this base layer for work and also to play sports. It feels great and fits well, keeps you dry when sweating, as well as warm on cold days but, always bring a jacket with you. . . You never know!
Date published: 2017-03-07
Rated 2 out of 5 by zorrofish from Not as warm as advertised I wore these (along with the baselayer tights) while fishing in OR in temperatures in the 20's and 30's. The only time they kept me warm was when I was actively fighting fish; the rest of the time I could have worn a simple polypro lognsleeved t-shirt. Not worth paying extra for, but I got them on sale so guess I didn't lay out too much.
Date published: 2017-02-01
Rated 5 out of 5 by Alphaclassmerv from Great Product It's very easy to move around in. Very warm and makes it easy to layer.
Date published: 2017-01-12
Rated 5 out of 5 by Shelly718 from So warm! Bought both the Men’s Heavyweight II Stretch Baselayer Long Sleeve Shirt and Pants for my husband. He's a carpenter and works in below freezing temperatures all winter. These are working out so well for him as his base layer! He said he has been warm on those really cold days and that is very unusual for him. We are going to buy another set soon.
Date published: 2016-12-27
Rated 4 out of 5 by Duckyy from Heavyweight Well built product just not as warm as expected. Would consider it more of a light to midweight.
Date published: 2016-12-20
Rated 5 out of 5 by CSweeney from Gift, getting a lots of use I got this shirt for my boyfriend. I have the women's one and love mine! The shirt fits him well and he can wear it under anything, whether we're just going around town or heading out on an adventure. It keeps him warm and dry without having to bundle up with bulky layers.
Date published: 2016-12-16
Rated 5 out of 5 by Basserjim from Heavy weight II base layer top Purchased this for duck/goose hunting and fishing on those cold damp winter days. Very light weight, complete freedom of movement, wicks sweat away from your body after a rigorous workout setting up and bringing in decoys. All I can say PERFECT!
Date published: 2016-12-01
Rated 4 out of 5 by Ereggae from Get a size larger The bottoms are true to size but the top fits very snug.
Date published: 2016-10-05
Rated 5 out of 5 by Laddie from Eliminates heavier clothing Perfect for climate change.
Date published: 2016-03-30
Rated 5 out of 5 by GerryG from Great warmth & fit! I have been wearing silks for many years, but tried some Heavyweight II bottoms a few weeks ago and I was impressed with the warmth. So much so that I bought a couple of the matching tops. Being 6'4", I was delighted by the sleeve length and torso fit. I'm a now a Columbia Convert! But, the warmth factor is outstanding. That reflective lining is something else. So much so, I recently purchased a new Columbia ski jacket with the reflective liner. Now, I have to open the vents! It's great to be warm.
Date published: 2016-03-23
Rated 4 out of 5 by Rob3 from heavyweight baselayer I have been looking for a good baselayer for some time now. I have tried just about every manufacture out there. They just would not fit right, the material would not feel good or they be full of static witch I can't stand. This baselayer is the only one I found that fit true to size felt good kept me warm in 30 degree weather and kept me cool when I started sweating. I plan on buying another pair to have as a extra.
Date published: 2016-03-14
Rated 5 out of 5 by reihl from Great product Warming and comfy. It's vary reasonable order
Date published: 2016-03-03
Rated 5 out of 5 by Rb85 from Best base layer I've ever worn! Tried a couple of different base layers and this one is by far my favorite. I could definitely feel the heat reflecting off of the material. Didn't get too hot inside while wearing it either.
Date published: 2016-02-27
Rated 4 out of 5 by Coaldust from Base Layer - Top (Omni-heat) Having tried for years to get a base layer top that truly kept me warm, and wicked away moisture, I tried the Omni-Heat top. It truly does the job it was designed for. When skiing in somewhat warmer temperatures it keeps you warm & dry. On a day of -12 degrees C, and a wind chill of > -20 C, I was the only one of our ski group to skip the mid morning "warm-up". Great product!
Date published: 2016-01-19
Rated 5 out of 5 by RickinPortland from Great base layer These shirts with the omni heat shield are great for a base layer for winter outdoor sports. Even more useful for me is that I wear them as my under shirt everyday during the New England winter. It just keeps you comfortable when the thermostat is set at 68°. They are form fitting. so if you have a decent physique they are great to wear as a fashionable shirt and kind of cool under a sport coat even. The price is half what some brands charge for similar items.
Date published: 2015-12-27
Rated 4 out of 5 by Eljefe from Needs a looser/relaxed fit style. This fits just like its description. I'm 6'0", 210 lbs. The sleeve length is good. It does pull down below my waist and I can cover my buttocks. The only drawback is that it is a little too snug. Great if you have a very athletic or slim frame. But for the average build, it will snug your belly and accentuate it. If Columbia had this shirt in a looser fit, it would be perfect. I'm afraid if I get an XL, the sleeves would be too long, and it would hang down even lower.
Date published: 2015-10-23
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