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Men’s Midweight Stretch Baselayer Long Sleeve Shirt


http://www.columbia.com/mens-midweight-stretch-baselayer-long-sleeve-shirt-1638591.html 1638591
$41.25 $55.00
Style# 1638591
Greater Rewards members earn 413 points with purchase
Uses: Winter, Ski / Snowsports
Size & Fit Guide | Reviewers rated this product Fits Slightly Small | Fit Performance


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Style# 1638591
Uses Winter, Ski / Snowsports


It’s wicking, warming and ergonomic qualities make it a versatile, year-round, long-sleeve shirt. Wear it as an active fit baselayer in the winter, or as a standalone during workouts and recreation throughout the spring and fall.

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

  • 85% polyester / 15% elastane Omni-Heat™ Reflective Anytime Stretch Jersey
  • 85% polyester / 15% elastane stretch jersey Omni-Wick™ Anytime
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 4.7 out of 5 by 6 reviewers.
Rated 5 out of 5 by Omni Heat Shirt I purchased the shirt for my nephew. He works outside in cold. He refuses to work without it since he received it. February 13, 2016
Rated 5 out of 5 by Very warm I was impressed with the feel, look, fit and function. I've used under armour and Nike fitted baselayer shirts before, but this out performs them. It is a tight fit, but nowhere as tight as the others. Very comfortable and very warm. I usually have to wear a shirt and hoddie at home in the winters, but I wore just this shirt and I was fine! I will be purchasing several more. Wish I found this years ago. January 17, 2016
Rated 5 out of 5 by Not so cold out I wore this base shirt in -4 degree weather. It fit well and worked very good as a base layer under my heavier sweater. The quality is very good and the material does not itch or bind. Overall I am very pleased with this shirt. December 31, 2015
Rated 5 out of 5 by Warm Base Layer Like the jackets with Omni-Heat, you can wear fewer layers when you wear this base layer. They are very warm, yet, when you go inside or get in the car, you do not cook or sweat. December 9, 2015
Rated 4 out of 5 by Warmth Size and color were perfect. This base layer was medium warmth. I would not buy it again. It is not warm enough. I would get heavy warmth next time. December 3, 2015
Rated 4 out of 5 by Nice base layer-sleeves longer than normal Used it last weekend on a rainy and cold backpack trip. It worked well. This is a great base layer shirt. I am a classic medium and the torso fits well (not too snug), but the sleeves are about an inch too long. Would get 5 stars if it fit appropriately. Nice garment overall. October 2, 2015
  • 2016-10-31 T16:13:56.678-05:00
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Size & Fit Guide

Size Chart

Size & Fit Guide
Men's Body Measurement (Inches)
Neck 14-14.5 15-15.5 16-16.5 17-17.5 18-18.5 19-19.5
Sleeve Length 32 33 34 35 36 37
Chest 32-35 35-38 38-41 42-45 46-49 50-53
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
Neck 17-17.5 18-18.5 19-19.5
Sleeve Length 35 36 37
Chest 42-45 46-49 50-53
Waist 36-39 40-43 44-47
Hips 41-43 44-46 48-50
How to Measure
  • 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.
Men's Fit Guide
Body contouring fit conforms to movement.
Body skimming fit with end-use mobility in mind.
Modern Classic / Regular
Universal, easy fit for comfortable range of motion.
Most generous fit for a full spectrum of movement.

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
ORDER BY: 10:00 PM PST on December 15th to arrive by the 25th.
UPS 2-Day Air $12.00 2-3 Business Days
ORDER BY: 10:00 PM PST on December 19th to arrive by the 25th.
UPS Overnight $19.00 1-2 Business Days
ORDER BY: 10:00 PM PST on December 20th to arrive by the 25th.
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