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Men’s Heavyweight II Stretch Baselayer Long Sleeve Half Zip Shirt


http://www.columbia.com/mens-heavyweight-ii-stretch-baselayer-long-sleeve-half-zip-shirt-1638531.html 1638531
Style# 1638531
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Uses: Winter, Ski / Snowsports
Size & Fit Guide | Reviewers rated this product True to Size | Fit Performance


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Style# 1638531
Uses Winter, Ski / Snowsports


Slug it out in the elements with confidence in this long-sleeve, 4-way comfort-stretch performance baselayer that wicks sweat, reflects heat and attracts bliss. The thumbholes will only accentuate the thumbs up you give everyone when asked how your day is going.

  • Omni-Heat™ thermal reflective
  • Omni-Wick™
  • 4-way comfort stretch
  • Ergonomic seaming
  • Flatlocked construction
  • Antimicrobial treatment protects this product from bacterial growth
  • Thumb holes
  • Performance Fit
  • Center Back Length: 29"
  • Imported

  • 85% polyester / 15% elastane stretch waffle Omni-Heat Reflective™
  • 85% polyester / 15% elastane Omni-Wick™ Stretch Jersey
Omni-Heat™ Reflective
Thermal Reflective Warmth
High-Performance Wicking Fabric

Technology Videos

Play youtube video about Omni-Heat Reflective (tm)
Omni-Heat™ Reflective
Magic in a littlesilver dot.
Breathable material with little silver dots that reflect body heat.
Play youtube video about Omni-Wick (tm)
Pulls moisture away from the body so sweat can evaporate quickly.


Rated 5 out of 5 by 2 reviewers.
Rated 5 out of 5 by I love it. Thank you for making a shirt , off-the-rack, true to size and making the sleeves long enough where sleeves stay at base of my hand & wrist meet. I'm 6' 2'' tall and I have never gotten a shirt with long enough sleeves. The way the shirt keeps me warm is fabulous. I usually wear a top of some kind over the shirt especially if I'm going to be outdoors. Thank you for a great garment, I now have 2 light weight and 1 heavy weight shirt. Dana November 15, 2015
Rated 5 out of 5 by Basically Perfect This is a great base layer, underwear. It is very well made of excellent materials. Its design is perfect. I tried the Mediumweight base layer shirt and found it too light for the seriously cold weather in which we'll be. October 7, 2015
  • 2015-11-29 T12:35:24.165-06:00
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Size & Fit Guide

Size Chart

Size & Fit Guide
Men's Fit Guide
Body contouring fit conforms to movement.
Body skimming fit with end-use mobility in mind.
Modern Classic
Universal, easy fit for comfortable range of motion.
Modern Classic
Most generous fit for a full spectrum of movement.
Men's Body Measurement (Inches)
Pant Size
Neck 14-14.5 15-15.5 16-16.5 17-17.5 18-18.5 19-19.5
Chest 32-35 35-38 38-41 42-45 46-49 50-53
Sleeve Length 32 33 34 35 36 37
Waist 26-29 29-32 32-35 36-39 40-43 44-47
Hips 32-34 35-37 38-40 41-43 44-46 48-50
Inseam Varies by Item
Pant Size
Neck 17-17.5 18-18.5 19-19.5
Chest 42-45 46-49 50-53
Sleeve Length 35 36 37
Waist 36-39 40-43 44-47
Hips 41-43 44-46 48-50
Inseam Varies by Item
How to Measure
  • 1. Neck: Measure at the base or thickest part of your neck.
  • 2. 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.
  • 3. Waist: Measure around the natural waistline, allowing the tape measure to sit comfortably.
  • 4. 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.
  • 5. Inseam: Measure from the top of the interior leg to the bottom of the ankle.
  • 6. Hips: Measure around the fullest part of your hips.

How to Measure

Columbia Fit Guide

How to Measure

  • Fold up at dotted line.
  • Place against a wall or other 90 degree surface.

    Place heel against fold/wall on flat level surface.
  • Mark the end of the longest toe with a pen or pencil.
  • Measure both feet and use the larger measurement.
  • Read measurement and compare to size chart.
  • When comparing on the size chart, determine the closest larger measurement and use that number to determine your shoe size for your country’s shoe measurement standard.

Shipping & Returns

Shipping & Returns
Shipping Information
Shipping Method Rate Expected Delivery Time
UPS Ground $6.00 3-7 Business Days
UPS 2-Day Air $12.00 2-3 Business Days
UPS Overnight $19.00 1-2 Business Days
Free Standard Shipping
Return Policy

Returns are accepted within 60 days of the purchase date online or in-store. 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. Visit Customer Service