Fat Jack Pant

Built For: Cold weather Riding

Size Guide


The Fat Jack Pant is a Sport fit technical pant, with a slim fit at the hip and thigh.

Fit | Sport

Hip | Slim

Thigh | Slim

Leg | Slim Straight Leg Opening


Technical and robust, our Fat Jack pant was designed for the epic fat-bike ride on miles of winter single track. Don’t have snow? Don’t fret, the Fat Jack performs in dirt and on pavement just as well. Our stretch, water resistant double weave fabric with durable canvas leg patches deliver the workman’s pant in a technical package. Reflective accents add night time security. The side leg pockets store all of your goodies securely behind a reflective bound zipper or open them up for full upper leg ventilation.


Fabric | Mid-Weight Polyester Double Woven Stretch Fabric

Fabric Content | 90% Polyester / 10% Spandex

Fabric Weight | 220g/m2

Product Details

Storage | 2 Front, 2 Zippered Leg, 1 Zippered Rear Pocket

Media | Media Port on Leg Pocket

Articulation | Articulated Knees & Gusset For Improved Range of Motion

Finish | DWR Finish for Water & Wind

Ventilation | Zippered Pockets Double For Ventilation

Visibility | RideLight Reflective Accents

Inseam | 33"

Fit | Sport

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Fat Biking Winter Bike Pant

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Customer Reviews

Based on 81 reviews
Size: S
Height: 5'10''
Weight: 140
Fit Comments: Fit is great
Hometown: Crosby, MN
Favorite Trail: The whole Cuyuna trail system
Best Use(s): Mountain Bike, Daily Wear / Casual
Great pants and great customer service!

I personally have these pants and I love them. Great winter fat biking pants, snowshoeing pants, and I also use them often for hiking and other fall activities. I also ordered some as a gift and had some troubles with sizing and a defect in one of the pairs and the Club Ride Customer Service was so good and easy to work with. I can't say enough good things!

Size: M
Height: 6' 1/2"
Weight: 176
Fit Comments: Fits good but as my thighs get warmed up on a ride they get a little tight. Not tight enough cause an issue but noticeable.
Hometown: Millheim
Favorite Trail: Elijah, Jakes Rocks
Best Use(s): Mountain Bike
Nice pants except the snap

Pants are comfortable. I like the pockets. The snap keeps coming undone. Comfortable while riding at 25 degrees. any colder and I would wear tights or thermal underneath.

Hi DRC, I'm sorry to hear about the issue with the snap. That is not a problem we've seen before. This sounds like it could be a defective snap and therefore covered by our lifetime warranty which would either repair or replace that snap. Please contact our customer service team at service@clubrideapparel.com with this issue so they can get you taken care of. Thanks, Daniel
Size: M
Height: 5'10"
Weight: 140
Fit Comments: Sport fit is true to life.
Hometown: Las Vegas, NV
Favorite Trail: McCullough Hills
Best Use(s): Mountain Bike, Daily Wear / Casual
Great product!

Bottom line: I love these pants!! I'm tall and "lean" (not skinny, lol) so clothes usually fit loose on me. After reading the reviews on this product, and seeing the statures of the reviewers and what size others ordered, I ordered a small. I also took into account the size guide provided by Club Ride which does state these pants are 'sport fit'. I was surprised to find the small were actually very tight on me - that NEVER happens to me! Ever. So I returned them and got medium (customer service was outstanding by the way, thank you CR). Wearing alone as casual attire they fit great! Layered for riding they are a little snug but still comfortable. They have comfortable stretch quality, just enough but not too much. They look great, feel great, and perform great while riding my desert trails. Yet to see how well they fare when/if I hit the ground. We have a lot of sharp rocks, gravel and spiky plants here!

Size: L
Height: 5' 10"
Weight: 180
Fit Comments: Size L in CR shorts have more room in the waist than the pants.
Hometown: Lake Forest
Favorite Trail: Marquette NTN
Best Use(s): Mountain Bike, Gravel
All that I hoped

True to CR, the pants live up to the description. I wore a medium-weight base layer in 25-degree temp and was very comfortable. They fit well but not a lot of extra room in the waist if you're layering underneath.

Size: M
Height: 5'10
Weight: 165
Fit Comments: I bought mediums and have a 31" waist and these were very loose in the wasit, but perfect everywhere else
Hometown: Roseville, Ca
Favorite Trail: Stonewall in Auburn, Ca
Best Use(s): Mountain Bike
Almost perfect

Decided to give pants a try this winter as attempt to stay a little cleaner.
Enter the Fat Jack Pant. It seemed to check a lot of boxes I was looking for.
Fit is very nice except for (what I've found typical of Club Ride) the very baggy waist.
Now on the shorts you can get around this by the internal velcro adjustments (although not the most comfortable), but these pants don't come with any such system.
There is belt loops, but the pants don't come with a belt, so get one unless you want your butt crack hanging out
Leg fit is very nice, and there's amble room in the knee for pads
Overall, a very nice piece of kit

Men's Bottoms Sizing Chart
This a SPORT FIT style and is a closer fit. For more information on the difference between comfort and sport fit click here.

*All measurements below in inches.
Inseams vary by Style. Please see product descriptions