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  • Alpinestars Vector Tech Knee Protector
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AlpinestarsVector Tech Knee Protector

Item # APN01KI

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  • Black, S/M ($134.95)
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Item # APN01KI

Vector Tech Knee Protector

Whether your favorite riding consists of white-knuckle descents and big lines at the bike park, or epic adventures on raw alpine singletrack, the Alpinestars Vector Tech Knee Protector gives you the peace of mind needed to withstand the rugged elements of any trail. These versatile knee guards offer certified impact protection for the front and sides of your knee, all in a lightweight and breathable package that won't hold you back on rides involving long, strenuous traverses in order to reach the fun part. Or if you'd rather to take them off for the uphill segments all together, it's easy to do thanks to the flexible side zipper that allows a quick and easy fit—without the time-consuming task of removing your shoes.

  • Lightweight, versatile knee protectors for mountain biking
  • Ergonomic guard offers comfortable and thorough coverage
  • Made from breathable, lightweight, abrasion-resistant fabrics
  • Flexible side zipper for easy on and off with shoes on
  • Liner offers progressive protection & a soft feel against the skin
  • Hook-and-loop straps ensure a stay-put fit on rough trails
  • Silicone print and stretch mesh panel further stabilize the fit
  • CE certified Level 1 protection
Tech SpecsSize
Tech Specs
[guard] softshell polyurethane, aramid fiber, semi-rigid thermoplastic shell, [sleeve] rip-stop nylon, polyethylene foam, polyester mesh
zipper, hook-and-loop straps
Protection Area
CE EN 1621-1:2012
Recommended Use
downhill, enduro, trail
Manufacturer Warranty
21 days


Knee & Shin Guards
Knee Circumference
(10cm above knee)

15.4 - 16.5in

(39 - 42cm)

16.5 - 17.7in

(42 - 45cm)

17.7 - 18.9in

(45 - 48cm)

18.9 - 19.7in

(48 - 50cm)

Calf Circumference

12.6 - 13.8in

(32 - 35cm)

13.8 - 15in

(35 - 38cm)

15 - 16.1in

(38 - 41cm)

16.1 - 16.9in

(41 - 43cm)

Knee Circumference
(10cm above knee)

15.4 - 17.7in

(39 - 45cm)

17.7 - 19.7in

(45 - 50cm)

Calf Circumference

12.6 - 15in

(32 - 38cm)

15 - 16.9in

(38 - 43cm)

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