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BackcountryArmstrong Short-Sleeve Jersey - Men's

Sale 40% Off$35.97 - $38.97

Item # BCC00D5Past Season Colors

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  • Dusty Teal, S ($38.97)
  • Dusty Teal, XL ($38.97)
  • Dusty Teal, XXL ($38.97)
  • Black, S ($35.97)
  • Black, M ($35.97)
  • Black, L ($35.97)
  • Black, XL ($35.97)
  • Black, XXL ($35.97)
  • Molten Lava, S ($35.97)
  • Molten Lava, M ($35.97)
  • Molten Lava, L ($35.97)
  • Molten Lava, XL ($35.97)
  • Molten Lava, XXL ($35.97)
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Item # BCC00D5

Armstrong Short-Sleeve Jersey

Armstrong is a well-known trail in our hometown of Park City, Utah. It ascends 1500 vertical feet over the course of 4 miles, and is one of the best choices to access higher elevation trails in the area. This makes Armstrong a go-to option for post-work rides and weekend adventures alike, and thus a perfect name for our short-sleeve mountain bike jersey that's equally ready for both. For the Armstrong Short-Sleeve Jersey, we partnered with some of the best designers in the industry and incorporated feedback from our knowledgeable employee riders, allowing us to bring you a comfortable and functional jersey that we gladly stand behind.

With its 4-way stretch construction and non-restrictive fit, the Armstrong Jersey is comfortable enough for all-day wear while providing the mobility needed to muscle your bike up technical climbs and down hair-raising descents. It uses breathable fabrics that wick moisture effectively, keeping you cool and dry when you're sweating it out on a tough ride. Useful features include silicone gripping dots on the interior back hem that prevent the jersey from riding up, as well as an integrated wipe on the lower left hem to keep your eyewear clear. The Armstrong Jersey is available in two striking colorways as well as classic black, and sizes ranging from small to XX-large.

  • A short-sleeve mountain bike jersey made by Backcountry
  • 4-way stretch material maximizes your freedom of movement
  • Non-restrictive fit stays comfortable on all-day rides
  • Breathable side panels keep you cool on tough climbs
  • Fabric wicks away sweat and dries quickly
  • Polygiene technology helps the jersey stay fresh for longer
  • Silicone grippers on rear hem keep the jersey in place
  • Comes with integrated sunglass wipe
Tech SpecsSize
Tech Specs
48% nylon, 48% modal, 4% spandex
Recommended Use
cross-country, enduro, trail
Manufacturer Warranty
limited lifetime


Mountain Bike Apparel

35 - 37.5in

(88.9 - 95.3cm)

37.5 - 40.5in

(95.3 - 102.9cm)

40.5 - 43.5in

(102.9 - 110.5cm)

43.5 - 46.5in

(110.5 - 118.1cm)

46.5 - 49in

(118.1 - 124.5cm)


29 - 31.5in

(73.7 - 80cm)

31.5 - 34.5in

(80 - 87.6cm)

34.5 - 37.5in

(87.6 - 95.3cm)

37.5 - 41.5in

(95.3 - 105.4cm)

41.5 - 45in

(105.4 - 114.3cm)


35 - 37.5in

(88.9 - 95.3cm)

37.5 - 40.5in

(95.3 - 102.9cm)

40.5 - 43.5in

(102.9 - 110.5cm)

43.5 - 46.5in

(110.5 - 118.1cm)

46.5 - 49in

(118.1 - 124.5cm)





31 - 32in

(78.7 - 81.3cm)

32 - 34in

(81.3 - 86.4cm)

34 - 36in

(86.4 - 91.4cm)

36 - 38in

(91.4 - 96.5cm)

38 - 40in

(96.5 - 101.6cm)


23 - 25in

(58.4 - 63.5cm)

25 - 27in

(63.5 - 68.6cm)

27 - 29.5in

(68.6 - 74.9cm)

29.5 - 32in

(74.9 - 81.3cm)

32 - 34.5in

(81.3 - 87.6cm)


33 - 35in

(83.8 - 88.9cm)

35 - 37in

(88.9 - 94cm)

37 - 39in

(94 - 99.1cm)

39.5 - 42in

(100.3 - 106.7cm)

42 - 45in

(106.7 - 114.3cm)




How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

View more Men's Short Sleeve Mountain Bike Jerseys

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Great feel... sizing off

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: Large

As soon as I opened package and looked at shirt size I knew it was going to be small. 5’10-190ish lb. slight dad bod, usually A large fits Me well enough not to feel or look like a fat guy in little coat. This shirt is SMALL..and short to boot.
I actually think the shirt will perform well and looks good, but will need to size up. Just sucks that I have to pay for a return. Wanted to write this because of lack of dad bod reviews... SIZE UP!!!

T-Shirt Looks, Jersey Feel

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: Medium

Personally I like jerseys that look like t-shirts, casual enough to wear off the bike but having some tech benefitsand the Armstrong jersey fits the bill. It's very unassuming until you look closely and see the side ventilation, the longer tail, and feel the stretchy material. It wicks way better than a cotton tee of course, but I have yet to get thoroughly sweaty enough to test it's odor resistance.

Fit is true to size (t-shirt sizing) as far as looseness, sleeve length, and body length..

I think the retail price on this is a bit expensive for how simple it is but if you can get a deal, this is a great shirt!

great shirt

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: Large

fits well, lightweight, functional, very comfortable

How's the fit on this tee? Is it trim fit like a jersey, or more boxy like a traditional tee? Does the sizing chart seem accurate - does it fit like most cotton tees?

Hi Jason,

I'd rate this as an athletic T. It's not as tight as a traditional bike jersey but isn't as boxy as a casual T either.


Most comfortable shirt I own

  • Familiarity: I've used it several times

I've used this several times now mostly for Mtn Biking, but I usually find myself wearing it the rest of the day... This jersey/shirt is insanely comfortable and Breathes well. It also doesn't look like a jersey which I personally like!

Thank you for trying and commenting on so many of our products! We appreciate the feedback :)

Awesome Cross Functional Bike Jersey

  • Familiarity: I've used it several times

This thing is great. It’s super functional - Wick’s moisture and breathes really well but it also has a good modern fit. It also doesn’t look super ‘moto’ so you can wear it for other activities.