A toasty baselayer with thermal reflective waffle fabric for dynamic activity in the deep cold. 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 BASELAYERA toasty compression baselayer for the deep cold, this heavyweight tight holds in heat with thermal reflective waffle fabric.MOISTURE WICKINGOmni-Wick stretch jersey fabric helps keep you dry and free of chill.ERGONOMICFitting snug to the body with contouring seams, this tight won’t get in your way.Features:
- Antimicrobial treatment protects this product from bacterial growth
- Ergonomic seaming
- Flatlocked construction
- Gusset detail
- 4-way comfort stretch
- Omni-Heat™ thermal reflective
- Style# 1638551
- 85% polyester / 15% elastane Omni-Heat Reflective™ 210g Stretch Jersey
- 85% polyester / 15% elastane stretch waffle Omni-Heat Reflective™
Size & Fit
Measurement & Sizes (Inches)
Inseam varies by item
- 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|
|Standard||$6.00||5-7 Business Days|
|Expedited||$12.00||3-4 Business Days|
|Rush||$19.00||2-3 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 Tight is rated out of 5 by 52.
Rated 5 out of 5 by Bruski51 from Great baselayer! These are super comfortable and warm. I have both the medium and heavy weight versions and love them.
Date published: 2019-02-16
Rated 5 out of 5 by AronB from The Final Piece in my Columbia update These thermals are ridiculously warm. The last month in Minnesota has been a perfect test and OmniTech smashed it. I'll never get cold legs again!
Date published: 2019-02-12
Rated 5 out of 5 by ForrestM from Super warm! Honestly, I thought that perhaps the reflective thing was a gimmick. I am still not 100% sure its not, but these are warm! I couldnt believe it, compared to other thermal underwear I own these are hands down the warmest. Only drawback is that they are so warm that I did end up sweating a bit in them. So, If I was in super cold weather, that would be something I would need to watch out for.
Date published: 2019-02-11
Rated 5 out of 5 by charlieepink from Heavyweights in size Large, black These heavyweights are different from midweights, because they have the thermal looking outside as opposed to the shiny slippery outside of the midweights. Additionally, they are MUCH warmer. For reference, my boyfriend is 5'11' 210 lbs and large on top and bottom fits tightly as they should. He said they are great for outdoors as his job requires them to be outside 8+ hours a day, but said they are for the colder, windier days, as he wore them with moderate activity in 40 degree weather and said the tops were a little too warm. He did however have a vest and heavier coat on over them. If you are torn between midweight and heavyweight, I would say go heavyweight on the bottom for below 40 and go midweight and another sweater/long sleeve layer on the top for ~40 degree weather. Anything colder, I think you are safe with heavyweights on top and bottom together.
Date published: 2019-02-07
Rated 1 out of 5 by JayhawkMAH from Way too small My waist is 31"-32". Size small is supposed to fit 29"-32". I could not even get it past my hips. The Return Policy is ridiculous. They don't do an exchange. Instead, they charge you $6.00 to ship it back to them and re-order the correct size. However, when I went back to re-order (6 days after the original order and the day I received the order), the price jumped from $47.50 to $65.00. I will not be ordering from Columbia.com ever again.
Date published: 2019-02-07
Rated 5 out of 5 by ShaversRUs from So thankful for these Shipping was fast, and this is a product that truly lives up to what it is advertised to do. My husband works outdoors as a delivery man, and he says he has never experienced a set of thermals that insulate so efficiently while feeling comfortable against his skin in his life. These thermal pants could not do a better job. We were somewhat skeptical initially, but a few days of wear in the harsh winter made believers out of us. We are extremely thankful for the functionality of these thermals.
Date published: 2019-02-05
Rated 5 out of 5 by Slate from Your mailman walking on your street and staying warm! As a mail man who walks 8 miles a day on my route dressing warm is a must! The Columbia baselayer heavyweight 2 fits great and keeps me warm. I suggest you try them if you have to time outdoors at your job or on that 10 mile hike.
Date published: 2019-02-03
Rated 5 out of 5 by Jo611 from Hot For how thin it is it is very warm. Recommended!
Date published: 2019-02-01
Rated 5 out of 5 by gin44 from Base Layer These base layer pants are a great way to stay warm on a cold day. They fit well and are comfortable.
Date published: 2019-01-19
Rated 5 out of 5 by sbarrett23 from sbarrett23 Nice base layer. Fit was good and works well under my ski shell!
Date published: 2019-01-19
Rated 5 out of 5 by Acii from GREAT bottoms Elasticit6and warmth retention in these are superb. Especially as they are not overly bulky.
Date published: 2019-01-18
Rated 5 out of 5 by SteveK66 from Awesome baselayer Used for snowmobiling, skiing, hiking under ski pants...never got cold!
Date published: 2019-01-17
Rated 1 out of 5 by mwoolma from Poor Quality Waistband stitching came undone and is now loose.
Date published: 2019-01-08
Rated 5 out of 5 by Oregano from Great baselayer Bought this for my husband for skiing and everyday wear. He loves kept him warm and dry
Date published: 2019-01-01
Rated 5 out of 5 by Michele25 from Incredible base layer!! Bought these for my paramedic, weight lifting son. They keep him warm in when he is at work in the elements and give him the flexibility he needs.
Date published: 2018-12-31
Rated 1 out of 5 by HypothermicDeathWishNOT from NOT a base layer Do not wear next to skin; the only way to keep warm for me was to wear a layer under this garment. The reflective heat didn't work to over come the wicking action. I thought I was going to die! Having chosen to wear this garment ruined my whole day; I was cold, dangerously cold, all day even with Rivers West heavy fleece water/wind proof garment over the top in 20 degree F temps. I've never had a problem like this before with these RW pants using a true thermal base layer. You'd have to be working out very hard all of the time and never stop to survive wearing this garment next to your skin.
Date published: 2018-12-09
Rated 5 out of 5 by Smittie from Core warmth This product coupled with fleece wading pant results in warmth even when fly fishing in 40 degree water. There is simply no other product I have used that is any where close to Omniheat in keeping you warm.
Date published: 2018-11-07
Rated 5 out of 5 by Xray21 from keeps the cold burn of winter away Nice, warm and comfy. Keeps the cold winter burn away. Keeps me nice, warm and dry. It doesn't make my skin itch. Good quality and omni-tech. It gets real cold here in MN during the winter months so this is a great addition to stay warm.
Date published: 2018-08-25
Rated 5 out of 5 by BobbaLouie from Keeps My Bottom Warm, No Matter The Pant Received these just as the coldest part of this winter arrived in the Tahoe Area. Used for multiple activities, including snowshoeing and alpine skiing. Kept me warm no matter the pant I wore. No bulk and fits just right.
Date published: 2018-04-04
Rated 4 out of 5 by Shawn08 from Pretty warm I wore this to Alaska, just this and my snow pants, not cold at all even 1am outside
Date published: 2018-03-31
Rated 5 out of 5 by Dudley2016 from Base layer Lovely and comfortable and great fit
Date published: 2018-03-29
Rated 5 out of 5 by TreyC from Great investment. Kept me nice and warm during all the bad cold weather we got in SC this year. I walk about a half mile to our duck blind and they were also breathable enough to keep me from overheating.
Date published: 2018-03-18
Rated 5 out of 5 by Peterden from Excellent thermal underwear I bought the thermal top and was so impressed by how warm it was I bought the bottoms as well. The reflective surface on the inside really keeps the heat in. They are comfortable as well. Highly recommended.
Date published: 2018-03-14
Rated 5 out of 5 by Rojaho from Baselayer bottom Very good baselayer bottom. Works well and feels nice.
Date published: 2018-03-10
Rated 5 out of 5 by Powderman from Warm and Snug fit not Bulky. Warm and snug, not bulky. I am a professional skier, a powder guide, at Powder Mountain in Utah. I spend most of my days above 8000 feet. I bought the tops and bottoms and I love the insulatI’ve properties. also they are much warmer then their thickness would suggest. It seems the reflective inside layer achieves the same or better results than adding density to the polypropylene! The reflective interior seems to do the job as they claim. If it works for me chances are it will work for you.
Date published: 2018-03-06
Rated 5 out of 5 by RunninFox from Great Product Performs as expected. Delivered as expected. Great product. I am 6'2", 240 and the nice fit surprised me. Keeps me warm in the frozen tundra of (rural) MN
Date published: 2018-02-28
Rated 5 out of 5 by Virgie from Nice and comfortable Fits really nice and works as advertised (This review was collected as part of a promotion.)
Date published: 2018-02-25
Rated 5 out of 5 by gumbapdp from Lightweight but warm This baselayer does a great job of keeping you warm but it is not heavy.
Date published: 2018-01-16
Rated 5 out of 5 by Skibum48 from Omni Heat heavy base layer Warn and comfortable. Well made and very durable. Been wearing some form of this product for almost 10 years. No complaints. Can be a little tight if you have big calves.
Date published: 2018-01-14
Rated 5 out of 5 by bab1112 from This stuff really works!!! I had bought the base layer for family members who are hunters, and bought myself a pair before attending the Music City Bowl. Weather was in the teens and 20's and I was plenty warm. Wore the heavy weight bottoms and a mid-weight top, because I also have a Turbo Down Omni Heat Jacket. Perfect layering. My husband did not wear his and was freezing! lol
Date published: 2018-01-03
Rated 4 out of 5 by kt621318 from Happy with purchase! Bought these for my husband and they fit great. He said they are very warm. 2 thumbs up. (This review was collected as part of a promotion.)
Date published: 2017-12-17
Rated 5 out of 5 by Employee from Baselayer My husband is ski instructor, he’s very pleased with this product
Date published: 2017-11-09
Rated 4 out of 5 by HoodEast from The only base layer you need I've had many base layers in my 35 years of staying warm in the extreme cold. Most have served their purpose mostly, but have lacked in varying elements. I've finally found exactly what I need - whether it be 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 very 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 Selkie from Perfect comfort I travel extensively in Mongolia, usually during Winter. And I also travel to Arctic and the Antarctic regions. This had me running around trying all brands of base layer clothing to keep me warm. All the brands that I tried over the years were not effective, too hot, badly fitting, and poorly constructed. Frustrated for years. Last trip to Mongolia I visited a backpacking store in Ulaanbaatar. They had this product on sale. Snapped it up. For the next 3 weeks I was the most comfortable I have ever been in Winter. It never got rank considering no running water. Got back to the states and bought another one.
Date published: 2017-10-20
Rated 5 out of 5 by Maltman from A Good solid base layer When its cold (Under20f) these are my go to pair - a good solid warm under-layer when its below normal skiing temps. nothing fancy but nice and warm
Date published: 2017-05-07
Rated 3 out of 5 by zorrofish from Good for some things, not others I wore these for the first time while steelhead fishing on the Clackamas River in temperatures at freezing to a bit below. They kept me from getting chilled but not warm; on the whole no better than polypro long underwear that I bought at REI many years ago. They do keep you warm if you are active but not if you are sitting still.
Date published: 2017-02-01
Rated 5 out of 5 by moosaki from When the going gets cold This is a quality product. We got the for out of doors base layering and sleeping in. They are comfortable and warm.
Date published: 2017-01-05
Rated 1 out of 5 by Sifu from Avoid Completely! These may be OK when one is active, but the thermally reflective surface gets cold against your skin when touched by the slightest breeze. I work in security, and it entails a lot of hours standing guard in the winter cold. I am a veteran and now work in government security. The first time I wore these I was shivering within 30 minutes of starting my shift, and it was in the 40's. The next day I tried them with another layer, made by Techwick, under them, and I still felt the silver dots get cold and clammy. The jackets actually work as intended, and that's what drove me to waste my money on this garbage. Please avoid my mistake and get something else if you are a soldier or security professional. Apologies to Columbia, I am sure they are nice people, I just care too much for the people I have worked with, some of whom have lost their lives protecting others. Best wishes
Date published: 2016-12-19
Rated 5 out of 5 by Basserjim from Heavyweight II Baselayer 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 5 out of 5 by Ereggae from Excellent quality This runs true to size and is very well made. Highly recommended.
Date published: 2016-10-05
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 SanJJ from Very warm for winter Good quality, so comfy.
Date published: 2016-02-23
Rated 5 out of 5 by Sterling5232 from Very Warm products This is very warm and can be one of the best undergarments money can buy!!!
Date published: 2016-02-15
Rated 2 out of 5 by Snuks from This product has great features I received a pair as a Christmas gift. I like the feel. They where even able to find them in a tall, which is amazing. It's so nice to have something long enough, even if they did have to go to the men's department for it. I was looking forward to the warmth of long johns from my youth, and I just didn't get that.
Date published: 2016-02-13
Rated 5 out of 5 by Shellymitis from Great product! Bought these as a Xmas gift for my brother in law who is a salesman at a car dealership and has to fight the winter cold - going in and out of the showroom all day. He was looking for a quality pair for a long time and he just loves them. His best Xmas gift! Thanks Columbia!
Date published: 2016-02-04
Rated 4 out of 5 by katephl from works well i got this for my husband who works outside and wanted something that would keep him warm. this product works well and he likes it. i got him a med based on his pants size based on the sizing info and wished i would have gotten a large
Date published: 2016-01-25
Rated 2 out of 5 by Brandemburgd from Not warm I love the Omni heat products but this one is not warm. At only 32 degrees outside I could feel the air through these and my pants. I would not recommend them.
Date published: 2016-01-23
Rated 5 out of 5 by Gbaby34 from Heavyweight tight I am very pleased with how this article of clothing performs in the cold weather. Exceptional warmth for the outdoor enthusiast!
Date published: 2016-01-22
Rated 5 out of 5 by Mwiding from Staying warm I'm a huge Columbia fan. if you want to stay nice and warm buy these! As alway Columbia's quality shines with this product.
Date published: 2016-01-16
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