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Men's Insect Blocker™ Long Sleeve Shirt


http://www.columbia.com/mens-insect-blocker-long-sleeve-shirt-AM7311.html AM7311
$39.98 $80.00
Style# 1441571
Greater Rewards members earn 400 points with purchase
Uses: Travel
Size & Fit Guide | Reviewers rated this product Small | Fit Modern Classic


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Style# 1441571
Uses Travel


This versatile plaid buttonup features the outdoorsman’s trifecta of awesomeness: Insect Blocker™ technology wards off bugs, UPF 30 wards off harsh UV rays, and Omni-Wick™ advanced evaporation keeps you cool and dry during dynamic activity.

  • Insect Blocker
  • Omni-Wick technology actively breathes and pulls sweat away from your body to keep you dry and cool
  • Omni-Shade UPF 30 provides premium protection from the sun
  • Pocket with hook and loop closure
  • Mesh pocket bags
  • Rollup sleeves with tab holders
  • Sun protection collar
  • Vented
  • Imported

  • Omni-Wick, Omni-Shade 100% Insect Blocker nylon basketweave
Insect Blocker™
Insect protection
High-Performance Wicking Fabric
Sun Protection

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.
Play youtube video about Omni-Shade (tm)
Blocks UVA and UVB rays to help prevent sunburn and long-term skin damage.


Rated 4.1 out of 5 by 20 reviewers.
Rated 3 out of 5 by Nice but not the usual Columbia quality It is a nice shirt but the fabrics are not he one that I´ve been use to wear in the past. This ones are thicker and at the same time more rigid than the regular Columbia shirts. Besides the size is completely mixed up. I wear regular L, and based on previous reviews I ordered a XL, even that it fits small. December 4, 2014
Rated 5 out of 5 by bring back zipper security pocket I ordered this shirt but to my surprise it was different from the first shirt of this type that I ordered in 2012. The first Insect Blocker shirt (Bug Blocker) shirt was purchased in 2012. It had only one left breast pocket with a zipper security pocket in. Based on the performance of that shirt, I reordered this shirt. To my disappointment , while this shirt has two pockets with velco flaps, it lacks the zipper security pocket which is needed by me. A zipper pocket keeps things from falling out when you bend over and is a great way to protect your passport or currency. The first shirt was a trip saver in that I wore it during the day, washed it in the shower at night, hung it up and it was dry next morning. This shirt is constructed differently but I am keeping this shirt because of the sale price. I am writing to request a shirt with the insect blocker, roll up sleeves, and two pockets with one of them being a zipper security pocket in white. October 27, 2014
Rated 2 out of 5 by Runs very small and YOU pay for return shipping A great shirt if it fits. My "large" was very short in the sleeves and tight in the shoulders; it did not measure up to the measurements stated on website. I had to pay $10+ to return the Large, but reordered an XL which fits fine, except a little wide. This is a good white informal shirt for Hawaiian dinners out, beach (keeps sand fleas away and gives sun protection), hiking, other travel, etc. With such small actual measurements, Columbia should pay for returns due to size. Luckily their price was too good to pass up. October 23, 2014
Rated 5 out of 5 by Brilliant shirt when far from everything. Had two of these during a work trip to Kazakhstan, touring various sites around the country for 3 weeks. We were outside most of the day in 30C weather, no access to washing machine, poor living conditions. These shirts wash well in a shower! Walk in wearing them, shower with shirt, rinse, actually shower, wring it out, it'll be dry in 30 minutes. They are super light for working in the heat, wick moisture away, dry quickly and look pretty smart. It might run a little small, but it's pretty close to the usual sizes in the UK. February 11, 2014
Rated 4 out of 5 by Insect Blocker Shirt As said in other reviews runs small. Quility of the shirt is great and comfortable. order a size up and you shouldn't have any problems. I would recommend this shirt October 5, 2013
Rated 5 out of 5 by insect blocker used this am in florida bugs did not come around. and this time of year there are a lot shirt runs alittle small not much September 4, 2013
Rated 4 out of 5 by Very nice shirt Like other reviews state, it does run small. If you are a medium definitely get a large. There's only 1 thing I don't like about this shirt, it has stitched on the arm, "insect blocker". I bought the shirt for my brother to wear during the summer for work events since he can't wear short sleeves & now I'm going to have to send it to the tailor to get that stitching taken out. Beside that, it's a great shirt, I'll definitely buy more. June 16, 2013
Rated 2 out of 5 by Fit is way small I read earlier reviews that said this shirt fit small so I ordered it one size larger than usual (I wear Medium, so ordered Large). Could barely get it on. By contrast, I also ordered two other shirts - a Bonehead Classic and a Blood and Guts Superlight - both of which fit perfectly in Medium. I returned this shirt. June 3, 2013
Rated 4 out of 5 by Great Hiking Shirt I got this shirt based on previous purchases of "bug off" clothing. I already know that the technology works for keeping the mosquitoes at bay. I like the design of this garment and find it acceptable to wear to a cook out or on the trail. The shirt ran small and I bought the next size up. I usually take a large and bought an XL instead. 4 Stars due to sizing issue, otherwise 5. May 15, 2013
Rated 5 out of 5 by Very good shirt -- order one size larger Like most other reviews, I will echo that you should ignore the "true to size" summary about size and order one size larger than you expect. I am usually between a small and medium and could not put the small on. The medium was a good fit. I have not field tested the shirt yet but have used earlier versions that work like a charm for mosquito protection. I bought this to go to SE Asia and so I like the very light breathable fabric. Design and quality appear to be good. January 2, 2013
Rated 4 out of 5 by Runs Small I wear a Med. in the PFG - same style shirt and ordered a medium in this shirt. To say it was a tight fit is an understatement. Will be using it in Haiti while helping to build Habitat homes - will update the review when I get back as to how the Insect Blocker works. November 12, 2012
Rated 5 out of 5 by Avoiding bugs in Africa I just got back from several weeks out in the wilds of Southern Ethiopia where mosquitos and other bugs are very common. This product was very comfortable and worked extremely well on the basis that I didn't get a single bite. October 28, 2012
Rated 5 out of 5 by Very comfortable, functional shirt Excellent materials and construction. Wore this out to Mt. Yoran which involves an approach hike past multiple small lakes. No bites. Had it on during the climb and it held up on the rock. Shirt runs a little small. I often wear a medium but the large was a better fit. September 4, 2012
Rated 5 out of 5 by Works Great! I had my reservations about the Insect Blocker products. I have tried other brands in the past and been disappointed. That is not the case with this product. I bought the shirt for field work in the Everglades where mosquitoes are ferocious in the summer. I hate bug spray and conventional bug jackets are HOT and do not breath. I have had the shirt for 2 months now and it works great. The product runs a little small but I liked the fit. August 13, 2012
Rated 5 out of 5 by Performs as advertised I recently purchased this shirt, a pair of long pants and a hat, all from the Insect Blocker line. I spent 5 days in northern Ontario, Canada and they only time the mosquitos got me was when I was not wearinf the clothing! I made portage's at sundown and I can tell you once you hit the shoreline watch out, my fishing buddies were laying on the deet. The only place I used a small amount of deet was on my ears, a few would try to fly under the hat. Great Product, highly recommend July 23, 2012
Rated 4 out of 5 by Inscet Blocker Shirts I bought two of these from Cabelas in XL which is what I normally wear based on their size charts. They were too small and I had to pay to return them and then buy from Columbia as Cabelas does not carry XXL. The result - I paid shipping charges 3 times which I am not particularly happy about. The XXL fits better but the cut is still not particularly generous for a field shirt (and I never wear XXL). I cannot comment on how well they function as I have not had them in the field yet. July 23, 2012
Rated 2 out of 5 by Size not even close I purchased both the Insect Blocker Shirt and Pants. The size is not even close to other Columbia items of the same size. They are at least one size smaller if not more. I am returning for the next larger size to see if that helps. Someone certainly did not right size these products. Otherwise, construction, design, color all seem very good so I would recommend the product, just get the next larger size. June 8, 2012
Rated 5 out of 5 by Great fit/look...and Insect Block also! I purchased two of these because we live in an area where my dogs can get a dozen ticks in 30 seconds walking on the side of the road. But I haven't fully tested them for Insect Block... I've been using them as "business casual" shirts. I love the fit (on my admittedly skinny 70 yr old body), comfort, and how they look. I wore them almost exclusively on our recent 10 day trip to Europe. May 16, 2012
Rated 5 out of 5 Praying for rain We haven't had much rain since I got this shell, so I can't really rate its function yet. The fit and features are first-rate. Waterproof zippers and ventabke armpits are awsome. My biggest question mark is how well the garment gets rid of water vapor while exercising in moderately warm weather. April 24, 2012
Rated 2 out of 5 by Tight fit Nice shirts, good colors, but had to return because they were noticeably smaller than other Columbia shirts I've purchased of the same size. April 10, 2012
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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