SKU: 37840510303

Alpinestars - SX-1 Plasma Knee Protector

Sale price$116.95 Regular price$129.95
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Ships within 48 hours · Estimated delivery Oct 31 - Nov 5

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Description

Alpinestars - SX-1 Plasma Knee ProtectorAlpinestars SX 1 Plasma Knee Protector The SX 1 Plasma Knee Protector are built to keep your knees and shins protected from hits, roost, and stray footpegs. The SX 1 PLASMA Knee Protector features a PLASMA Knee Protector embedded into a highly ventilated semi rigid frame construction for superior impact protection, while the integrated Dual Gear System (DGS) promotes the natural articulation of the knee. Key Features: Highly Comfortable: The Nucleon

Alpinestars - SX-1 Plasma Knee Protector

The SX-1 Plasma Knee Protector are built to keep your knees and shins protected from hits, roost, and stray footpegs.

The SX-1 PLASMA Knee Protector features a PLASMA Knee Protector embedded into a highly ventilated semi-rigid frame construction for superior impact protection, while the integrated Dual Gear System (DGS) promotes the natural articulation of the knee. Key Features: Highly Comfortable: The Nucleon PLASMA knee protector is constructed from a USDA Certified Biobased viscoelastic material.

Why We Like It

We like how they manage to cover so much area without feeling like heavy, awkward armor.

Why It’ll Work for You

If your shins have already met pegs and rocks, adding this kind of protection is a smart move for future rides.

Variants / Options

Available in multiple sizes and sometimes youth versions to match different riders.

Key Features

  • Highly Comfortable: The Nucleon PLASMA knee protector is constructed from a USDA Certified Biobased viscoelastic material. Designed for multi-directional pliability, the protector molds to the knee for a close fit, effectively dissipating impact energy to deliver reliable protection.
  • Dual Density Co-Injected Frame for Support and Unrivalled Comfort: Engineered with a scooped lower extension made from a soft polymeric blend to avoid any pressure points associated with a hard edge from occurring as a result of the boot pushing against the protector. The same scooped design is also applied to the upper extension, preventing the protector from digging into the skin and causing discomfort while riding.
  • Controlled Natural Movement: Featuring the Dual Gear System (DGS) where both the upper and lower frames have integrated gear profiles that ensure a smooth hinge function to promote the natural articulation of the knee.
  • Ergonomic Frames with Versatile Sizing: The ergonomically sculpted frames of the SX-1 PLASMA Knee Protector feature strategically positioned rigid and flexible over-injected shells, providing a secure yet adaptive fit for a wide range of leg sizes.
  • Patella System Protection: The Patella System is engineered to offer full coverage of the knee cup regardless of the degree of extension while the rigid outer Patella System shell prevents injuries from handlebar strikes.
  • Lightweight knee protection with extensive protective coverage.
  • Upper and lower frames are constructed from a high-performance polymer for optimized levels of flexibility and strength as well as excellent weight-saving properties.
  • The upper and lower frames' integrated dual pivot hinge system follows the natural movement of the knee and keeps the protector well positioned while riding.
  • Frames feature a slim ergonomic design.
  • The dual strap closure system features a hook-and-loop closure with snap-fit buckles for easy in and out and a personalized, secure fit.
  • According to European statutory law, the CE mark is a conformity requirement for the marketing of this product. The following standards apply: Knee protector: EN 1621-1:2012 LEVEL 1

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37840510303

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4.2 ★★★★★
Based on 26 reviews
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Verified Purchase
Jessica Smith
Charlottesville, US
★★★★★ 5
Exactly what I was looking for
Size: King, Color: Bright White
It’s exactly what I was looking for. It fits well and makes the bed look more finished.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
J
Verified Purchase
Jose Javier Garcia Fernandez
Louisville, US
★★★★★ 3
Med Quality prod
Size: Full, Color: Light Grey
A little wrinkle
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Reviewed in the United States on April 25, 2026
A
Verified Purchase
Armie Sheffield
Belleville, US
★★★★★ 5
Awesome product
Size: King, Color: Navy Blue
From this point forward, this is the only company that I would use. All is one color, and not having the white fabric in the middle is a bonus!
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Reviewed in the United States on May 14, 2026
C
Verified Purchase
Cat
Grantham, US
★★★★★ 5
Bed pleated duster
Size: Full, Color: Beige
Lightweight great price easy to fit the bed
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Reviewed in the United States on April 16, 2026
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Verified Purchase
DMB
Alexandria, US
★★★★★ 5
Nice dark blue color
Size: Twin, Color: Navy Blue
Bought 2 dark blue for twin beds and they look good with my blue and white quilts covering the beds. There are some wrinkles in the cloth due to packaging which may relax with time. but don't show much due to the dark color. I did find any defects in the stitching or fabric on the items I purchased. A note for prospective buyers is that the dust ruffle covers the entire bed foundation, so get help to put on under a heavy mattress.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026

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