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Reviews > Clothing > Jackets > Dickies Pro Jasper Extreme Coat > Test Report by John Waters




INITIAL REPORT - November 21, 2018


NAME: John R. Waters
EMAIL: jrw at backpackgeartest dot org
AGE: 69
LOCATION: Canon City, Colorado USA
HEIGHT: 5' 7" (1.70 m)
WEIGHT: 175 lb (79.40 kg)

My backpacking began in 1999. I have hiked rainforests in Hawaii, Costa Rica, and Puerto Rico, glaciers in New Zealand and Iceland, 14ers in Colorado and Death Valley's deserts. I hike or snowshoe 6-8 miles (10 km-13 km) 2-3 times weekly in the Cooper Mountain range, with other day-long hikes on various other southwest and central Colorado trails. I frequently hike the mountains and deserts of Utah and Arizona as well. My daypack is 18 lb (8 kg); overnights weigh over 25 lb (11 kg). I'm aiming to reduce my weight load by 40% or more.



Manufacturer: Williamson-Dickie Mfg. CO
Year of Manufacture: 2018
Manufacturer's Website:

Pro Jasper Extreme Jacket MSRP: US $99.99
Pro Jasper Extreme Jacket Listed Weight: N/A
Pro Jasper Extreme JacketMeasured Weight: 34 oz (964 g)
Pro Jasper Extreme Jacket Colors Available: Black or Gravel Gray
Pro Jasper Extreme Jacket Color Tested: Black
Pro Jasper Extreme Jacket Sizes Available: Medium to 2XL
Pro Jasper Extreme Jacket Size Tested: Large
Pro Glacier Extreme Puffer MSRP: US $59.99 to $65.99
Pro Glacier Extreme Puffer Listed Weight: N/A
Pro Glacier Extreme Puffer Measured Weight: 24 oz (680 g)
Pro Glacier Extreme Puffer Colors Available: Black only
Pro Clacier Extreme Puffer Color Tested: Black
Pro Glacier Extreme Puffer Sizes Available: Medium to 3XL
Pro Glacier Extreme Puffer Size Tested: Large
Pro Glacier Extreme Puffer Vest MSRP: US $44.99 to $49.99
Pro Glacier Extreme Puffer Vest Listed Weight: N/A
Pro Glacier Extreme Puffer Vest Measured Weight: 14 oz (397 g)
Pro Glacier Extreme Puffer Vest Colors Available: Black only
Pro Clacier Extreme Puffer Vest Color Tested: Black
Pro Glacier Extreme Puffer Vest Sizes Available: Medium to 3XL
Pro Glacier Extreme Puffer Vest Size Tested: Large

Pictures Copyright Dickies

Made in Vietnam


Dickies advertised its Pro (trademarked) integrated outerwear system as customized outerwear for extreme weather conditions. The "Pro" is built on the Jasper Extreme Coat, an outer shell. The Jasper Extreme Coat can be worn separately or zipped together with the Glacier Extreme Puffer or Frost Extreme Fleece. The Glacier Puffer Vest also will zip-in as a part of the Pro integrated outerwear system.

The Jasper Extreme Coat is made with 100% nylon. It is laminated with 10K/10K 100% polyester reinforcement and features a 70 gsm (grams per square meter), 100% polyester mesh lining so as to be waterproof and breathable.

"10K/10K"? "70 gsm"? What is that all about?

Since the above specs were meaningless to me, I had to do a bit of research to find out that the higher the gsm, the heavier the fabric. At 70 gsm, the lining of the Jasper Extreme Coat is very lightweight. As for the "10K/10K" stuff; the first "10K" is a measurement of how waterproof the fabric is. In this case, a 10k or 10,000 mm fabric, taking a square tube with the inner dimensions of 1" x 1" (2.5 x 2.5 cm) over a piece of the fabric, it could be filled with water to a height of (the second "10K") 10,000 mm (32.8 feet) before water would begin to leak through.

Add to that, the waterproof pit zips and sealed and triple needle reinforced seams, it sounds like this coat is meant to definitely be waterproof and breathable!

The Jasper Extreme Coat is made for a man and it fits that way. It has an adjustable hood which is also removable. The cuffs can be adjusted as well. The interior fleece collar has a chafe resistant neck guard.

The Dickies Pro Glacier Extreme Puffer is constructed of 100% taffeta with DWR (durable water repellent) properties. It is lined with Thinsulate insulation which is a non-bulky insulation. It has the ability to zip into the Dickies Pro Jasper Extreme Coat.

The hem is adjustable via a bungee and the exterior cuffs feature a "locker and loop" elastic binding for a customized fit. There are interior and lower outer pockets with zipper closures and a media port inside as well.

The interior fleece collar is a nice touch for added protection without a scratchy neckline.

Rather than go with the Glacier Extreme Fleece, I got the Dickies Pro Glacier Extreme Puffer Vest. It too is made with 100% taffeta and Thinsulate insulation with an interior fleece collar adjustable bungee hem and elastic cuff binding and features PU (polyurethane) coating and DWR technology. It sports exterior lower pockets with zipper closures as well as interior pockets with zipper closures and a media port.

It has the ability to zip into the Dickies Pro Jasper Extreme Coat.

I wear a size 43 jacket (a US LARGE) and have a 30 in (76 cm) arm length and a 16.6 in (42.2 cm) neck and I am 5 ft 7 inches (170 cm) tall.

Just looking at it, my first impression was that this coat would be very heavy. But it's not very heavy. It's medium heavy. It looks like it made of a black canvas material, but it is, in fact, 100% nylon (see the description above).

The coat sleeves are just a slight bit long, but I can easily use the hook and loop tie-backs at each cuff to hold the sleeve from slipping over my wrist. The coat ends up just at the bottom of my rear end, which is the way I like a shell.

When zipped up with either the puffer or vest as a liner, there is plenty of room to move my arms around and be comfortable. The large size MAY be slightly bulky on me, but I'd rather have it a little more roomy than be tight-fitting. I'll know more after extended use under different conditions.

The detachable lined hood is sturdily attached with four very sturdy snaps and it can be easily folded and stored in one of the side pockets with room for a few other items as well.

The Puffer is an attractive puff design and it zips into the coat. It is certainly attractive enough to be worn by itself.

The sleeves are just short enough so they don't extend outside the coat sleeve and will work fine for me when worn separately. The vertically zipped right and left inside pockets are fleece lined and support media devices and extra eye glasses, or whatever will fit.

The vest is also attractive and zips easily into the coat instead of the Fleece Liner. It has a nice high fleece lined collar and the same pocket arrangement as the Puffer.
This is quite a set. Each piece can stand alone and the coat can be use with the Puffer or the Vest, or both without zipping in the Vest (which I have not tried yet, but will - with pictures) for extreme cold.


Care instructions for the Dickies Jasper Extreme Coat are printed on an interior cloth tag sewn into the side seam of the jacket. The instructions are in three languages - English, French and Spanish as well as in the usual international care symbols.

They are as follows: machine wash in cold water with like colors using only a non-chlorine bleach (if needed), and no fabric softeners or dryer sheets. Tumble dry on low, removing promptly and using a medium iron if needed.

For the Jasper Extreme Puffer and the Vest, the care instructions are the same EXCEPT, NO IRONING. And there is an additional warning label advising that the Puffer should not be worn where there is a danger of ignition.


I just received these a few days ago and I already have been using the vest as a solo piece because it looks just great and I really like wearing vests. It's been quite comfortable to work and drive in and I'll report more detail on various uses as part of this report.

So, more later as we progress through this 16 week report process. We are going into our winter season here in Colorado although it's still going to be 50 F (10 C) and sunny this week. It appears that it could be very useful in the mountains at high altitudes as temperatures drop into negative figures, especially if one has to work for long hours in the field. I am really looking forward to doing this report.

Please check back in late-January to see what I have to report!

Thank you to and Dickies for the chance to stay warm and dry this winter season on the trails.

John R. Waters

This report was created with the Report Writer Version 1.5 Copyright 2018. All rights reserved.

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