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Alpinestars Evolution Shorts - Men's


Item # APN011M

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Item # APN011M

Survival of the gnarliest.

We aren't born with mountain-bike padding, so the Alpinestars Evolution Men's Shorts provide cushioning and support where you need it most. A stretch mesh body makes for a compressive, comfortable fit that supports your muscles and wicks moisture away from your skin, and EVA memory foam padding at the hips and thighs keeps you from getting banged up when you go over the bars. The elastic waist and silicone gripper hem keeps the Evolution from slipping and sliding while you're riding, and the integrated Noosfera chamois provides protection for your sensitive areas while you're in the saddle.

Tech Specs

stretch mesh
Protection Area:
thigh, leg
Recommended Use:
mountain biking
Manufacturer Warranty:
21 days

Size chart


Men's Apparel
Chest 35 - 36in
(88.9 - 91.4cm)
37 - 39in
(94.0 - 99.1cm)
40 - 41in
(101.6 - 104.1cm)
42 - 44in
(106.7 - 111.8cm)
45 - 47in
(114.3 - 119.4cm)
Waist 30 - 31in
(76.2 - 78.7cm)
32 - 33in
(81.3 - 83.8cm)
34 - 35in
(86.4 - 88.9cm)
36 - 38in
(91.4 - 96.5cm)
39 - 41in
(99.1 - 104.1cm)
Hip 40 - 41in
(101.6 - 104.1cm)
42 - 43in
(106.7 - 109.2cm)
44 - 45in
(111.8 - 114.3cm)
46 - 48in
(116.8 - 121.9cm)
49 - 51in
(124.5 - 129.5cm)
Thigh19 - 20in
(48.3 - 50.8cm)
21 - 22in
(53.3 - 55.9cm)
23 - 24in
(58.4 - 61.0cm)
24 - 25in
(61.0 - 63.5cm)
26 - 27in
(66.0 - 68.6cm)
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.

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Added All Mountain Protection

  • Familiarity: I've used it several times
  • Fit: Runs large
  • Size Bought: Small

I bought these shorts for the upcoming bike season to be used as undershorts. The Chamois is well built in these, comfortable and great for 3hour plus rides. The padding is not too stiff to inhibit mobility, nor do I notice it when pedaling. Fit was a touch large I have a 31" waist and the small was a much better fit. I would advise putting these in the dryer (even on a low setting) it deforms the pads slightly. I have two complaints about the short. First is the padding around the front of the hip bones. It seems like this is a place that I always scrape up and the short lacks padding in that area. Second the fit and finish was not great. My shorts arrived with the waist band detaching from the short. I sewed it myself (well my girlfriend did) and it has held up fine since the repair. Ii would buy these again. They are comfortable and provide a reasonable amount of protection for aggressive riding, but there is some room for improvement.