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Women's Coolest Cool™ Short Sleeve Top


https://www.columbiasportswear.ca/en/womens-coolest-cool-short-sleeve-top-AL6553.html AL6553
$ 59.99 CAD


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  • Size & Fit Reviewers rated this product Fits Slightly Small

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Style# 1501581
Uses Trail


Designed to keep you comfortable during active outdoor endeavors, this high-performing short sleeve top wicks like crazy, features UPF 50 sun protection and utilizes Omni-Freeze® ZERO sweat-activated cooling technology, which reacts with sweat to lower the temperature of the material.

  • Omni-Freeze ZERO sweat-activated cooling
  • Omni-Wick
  • Omni-Shade UPF 50 sun protection
  • 4-way comfort stretch
  • Antimicrobial treatment protects this product from bacterial growth
  • Ergonomic , flat lock seaming
  • Performance fit
  • Imported
  • Uses: Trail
  • Style# 1501581

    91% polyester/9% elastane pinhole mesh
Omni-Freeze™ ZERO
Sweat-Activated Cooling
High-Performance Wicking Fabric

Technology Videos

Omni-Freeze™ ZERO
Blue rings react with sweat to lower the temperature of the fabric, so you feel cooler.
Pulls moisture away from the body so sweat can evaporate quickly.


Women's Coolest Cool™ Short Sleeve Top is rated 3.8 out of 5 by 35.
Rated 4 out of 5 by from fits small I ordered a small & a medium & am glad I did b/c the small was way too tight. I normally wear a size 4 or small.
Date published: 2015-05-14
Rated 1 out of 5 by from Way too small! I purchased 2 of these shirts to wear during a trip in Vietnam. I usually wear a medium in Columbia tops but purchased the large as I was told they run small. It was still too small - tight and too form fitting. A disappointment. I can't comment on quality or function as I immediately returned them. I would suggest changing the sizing to better indicate the fit.
Date published: 2014-01-27
Rated 1 out of 5 by from Returning AL6553 Positives: Good fit, color, design. Comfortable to wear. Negatives: Did not cool most sweaty areas, just under arms & chest a little, but my chest broke out in a heat rash.
Date published: 2014-01-08
Rated 4 out of 5 by from High quality shirt, This shirt fits true to size, as does most of the Columbia gear I have owned through the years. It is a super light weight, comfortable and quick drying shirt. I've worn it hiking, rafting and even to work. That is really all I need a shirt to be, so that alone is a win for me. It hasn't pilled, faded, shrunk and no seams have come undone. As for the omni-freeze sub zero: it has to be pretty wet for you to notice a difference. Hiking alone I honestly barely notice it, when I'm running, or even just walking outside in the sauna that is Texas it does make a difference. That being said, it's not going to feel like someone just cold misted you or threw you in an ice box, be realistic here. I will say that when I wore it rafting and the water was already chilly, even though the shirt dried pretty quickly, I stayed cool forever.
Date published: 2013-12-02
Rated 5 out of 5 by from Love this shiret This shirt was the equipment winner for our Grand Canyon hike. It was the perfect color, the perfect weight, not confining, washes out easily, dries easily, and generally looks and feels good.
Date published: 2013-11-13
Rated 5 out of 5 by from These shirts work! I love these shirts. Don't expect to feel dramatically cooler, but I do feel cooler. What I like best about the shirt is how fast my sweat evaporates off of the shirt.
Date published: 2013-07-10
Rated 2 out of 5 by from Omni cool woman's shirt Nice looking shirt..but expensive hype...minimal cooling at Best! Disappointing..he
Date published: 2013-05-19
Rated 5 out of 5 by from Great for hot weather I guide for a living in the desert southwest. This shirt is the best for keeping me cool and comfortable. It IS really true what they say about the fabric cooling your skin. The fabric is also very soft and comfortable. I like the little blue dots on the white shirt--I am thinking this will cover the inevitable yellowing of the shirt with time. If you want more sun protection, the LS version of this is great too.
Date published: 2013-05-15
Rated 4 out of 5 by from Promising Shirt This shirt did what it said...cooled you down...but it had a weird, musty smell.
Date published: 2013-01-13
Rated 4 out of 5 by from Need more time to test in different weather conditions I've only had a chance to use this a few times, and the weather has been chilly each time I've used it. The shirt definitely kept me warm when it was chilly, but I also got hot while running and either didn't sweat enough for the fabric to cool me or wasn't making enough of a breeze. I'd tried a test sample of the fabric at an event which is what got me interested, so I know it can work, but I probably won't have a chance to fully test it's ability until next summer.
Date published: 2012-12-11
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Size & Fit Guide

Size Chart

Size & Fit Guide
Size XS
Bust 32-33
Waist 25.5-26.5
Hips 34.5-35.5
Size L
Bust 39-40.5
Waist 32-33.5
Hips 41.5-43
How to Measure
  • 1. 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.
  • 2. Waist: Measure around the natural waistline, allowing the tape measure to sit comfortably.
  • 3. Hips: Measure around the fullest part of your hips.
  • 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.
Women'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

How to Measure

    (Before you begin, put on socks the you will use with the footwear you would like to purchase).
  • 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
Standard $7.00 CAD 2 Business Days: ON, QC
4-10 Business Days: Rest of Canada
Express $18.00 CAD Next Business Day: ON, QC, & most centres
3-4 Business Days: Rest of Canada

Return Policy

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. Visit Customer Service