Swipe for more images

Men’s Baselayer Bug Shield™ Long Sleeve Top


https://www.columbia.com/mens-baselayer-bug-shield-long-sleeve-top-AM6184.html AM6184
Members get free shipping + 700 Greater Rewards points


Product Actions

Add to cart options
Add to Wishlist


Style# 1447201
Uses Trail


Mosquitoes harbor more than an excruciating pinprick—West Nile virus and malaria lurk deep within this summer pest. Don this Insect Blocker™ top and you’ll be armed with a force field of protection against biting bugs.
  • Uses: Trail
  • Style# 1447201
Insect Blocker™
Insect protection
High-Performance Wicking Fabric

Technology Videos

Play youtube video about Insect Blocker (tm)
Insect Blocker™
Keeps bugs at bay so you can enjoy the outdoors in peace.
Play youtube video about Omni-Wick (tm)
Pulls moisture away from the body so sweat can evaporate quickly.


Men’s Baselayer Bug Shield™ Long Sleeve Top is rated 4.4 out of 5 by 10.
Rated 4 out of 5 by from Mexican Bugs can't read English label saying insect block fabric I bought four of these shirts to take with me on a four week work trip to Mexico and two as gifts for my Mexican counterpart/ government companion. I am a forestry surveyor and my company was invited by the Mexican government to help map and survey areas in Chihuahua Mexico, I spent two weeks in the Chihuahua desert and the shirts were a great base layer especially at night when the desert gets cold. After two weeks in the desert and low insect activity the shirts worked great then we moved to the Sierra Madre Copper Canyon this was mostly alpine environment and in lower elevation thick jungle rain-forest. THe shirt were very nice in the higher elevation and moderate bug activity but when we traveled to the lower areas the effectiveness of the bug shield was reduced to maybe 75% effectiveness. I would continuously swat bugs off my arms and face and legs while wearing bug shield base layer shirt and pants and hat. My Mexican counterpart/protector assigned by the Government(carried firearm) had a great sense of humor and one night kidded and said These are Mexican Bugs and they can't read the English label saying insect block fabric. Over all these shirts were great they wicked moisture away very well and totally worked well in the desert and ok in the high humidity and bug infestation of high humidity jungle/rain forest terrain. The fit was perfect not to tight or too loose. I did not get one bug bite while in the desert or the alpine environment but did get bug bites in sub-tropical lower elevation climes. I outfitted myself with bug pants, shirts and hat and wore the l/s Bahama ll shirts if interested check out my reviews there.
Date published: 2013-08-16
Rated 4 out of 5 by from Bug Repellent Baselayer For those of us who hate the smell and feel of bug repellent sprays and lotions, this is a superior solution. I wore this shirt fishing bug-infested lakes in the North woods of Pennsylvania's Pocono Mountains in the twilight, late evening, and full darkness. I got very few bites near the shirt and generally few bugs around my head and shoulders, which was great. My legs and feet were another story . . . Apparently I need Insect Blocker pants, too.
Date published: 2013-07-31
Rated 5 out of 5 by from Awesome Shirt I am a Pro Fisherman on the FLW Tour. My arms starting getting dark sports on them from the Sun. My wife ordered these shirts to help protect my arms from the Sun. I could not believe how cool they were in 100 Deg weather with the sun beaming down on me. I had 100% protection from Sun and was cooler than having a short sleeve shirt on. Anybody working or playing in the Sun need to try this product it’s awesome.
Date published: 2013-07-05
Rated 5 out of 5 by from This product is as good as advertised. Excellent shirt for working out. Very comfortable and fits really well.
Date published: 2013-01-20
Date published: 2013-01-03
Rated 4 out of 5 by from Nice Shirt About all I could ask for in a light weight long sleeve shirt. I spend long hours outside after dark in the summer in this shirt is a perfect fit for keeping biting insects away, while not being overbearingly warm.
Date published: 2012-08-15
Rated 4 out of 5 by from a week in the wind river range Wore this shirt for a lot of my trip. There were not too many bugs around i did notice some right around dark i did not get bit. They also didn't land on the shirt but a few on my hands and neck. super comfortable, great fit, kind of pricey, cool shirt when worn by itself.
Date published: 2012-08-14
Rated 5 out of 5 by from Lightweight Love the light packable size of this shirt. Keeps the sun and bugs off your skin without you hardly even knowing its there. I commonly pair this with the Insight Ice short sleeve crew and the combo works great for summer backpacking. I'm 5'11 160lbs. and the medium fits me perfectly.
Date published: 2012-07-05
Rated 4 out of 5 by from BUG SHIELD vs deep wood off w/deet Wish there where more reviews pior to ordering. The shirt says it will last up to 70 washes. I guess the scent will last about this much or less. First use was in Destin, FL fishing the flats. Other on the boat and my self didnt feel anybites from any insects or see any. -1 Second trip, Shell beach, LA, I was sure to put it to the test against the no see um bugs. -1. The bugs where there and I was live bait. I dont think there is anything to keep them away. The result after three uses, its to much money, you will be better off with a baselayer to cover skin and stay cool than the Extra $ for the bug scent, use the extra money for some good bug spray. Wish it offered more color options. Washing it seperate from other clothes can be a pain.
Date published: 2012-06-26
Rated 5 out of 5 by from Comfortable and functional Perfect fit, very comfortable and breathes well. Not one single bite after a night of star gazing.
Date published: 2012-04-03
  • y_2018, m_9, d_22, h_14
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_US, sid_AM6184, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_columbia

Size & Fit Guide

Size Chart

Size & Fit Guide
Men's Fit Guide
Body contouring fit conforms to movement.
mens performance fit top
mens performance fit bottom
Body skimming fit with end-use mobility in mind.
mens active fit top
mens active fit bottom
Modern Classic / Regular
Universal, easy fit for comfortable range of motion.
mens modern classic fit top
Modern Classic / Regular
mens modern classic fit bottom
Most generous fit for a full spectrum of movement.
mens relaxed fit top
mens relaxed fit bottom
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
Mens size chart measurement guide
  • 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
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

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

Greater Rewards - Join the adventure
free shipping always
earn points & rewards
points for sharing
member only offers