SKU: 25621007785

Alpinestars - Bionic Flex Knee Protector

Sale price$76.50 Regular price$85.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

Alpinestars - Bionic Flex Knee ProtectorAlpinestars Bionic Flex Knee Protector The Bionic Flex Knee Protector are built to keep your knees and shins protected from hits, roost, and stray footpegs. With ergonomically profiled Nucleon Flex Technology protection held securely in position via an elasticated top strap and silicon hems, the incorporates comfort padding with a soft touch stretch mesh which prevents heat build up. The asymmetric and lightweight design ensures this knee protector

Alpinestars - Bionic Flex Knee Protector

The Bionic Flex Knee Protector are built to keep your knees and shins protected from hits, roost, and stray footpegs.

With ergonomically profiled Nucleon Flex Technology protection held securely in position via an elasticated top strap and silicon hems, the incorporates comfort padding with a soft-touch stretch mesh which prevents heat build-up. The asymmetric and lightweight design ensures this knee protector provides optimal levels of comfort and freedom of movement Features: Extremely lightweight, durable and flexible protector constructed from a breathable stretch mesh for a comfortable, close fit Elasticated top strap for a customizable fit Highly convenient and time-saving slip-on design with elasticated hems and silicon printing to prevent slippage and to help keep the protector securely positioned New design Nucleon Flex Technology protectors are highly perforated and secured on the outside of the sleeve for excellent breathability and ventilation Additional side foam padding for additional coverage Abrasion resistant fabric front panel for increased durability

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

  • Extremely lightweight, durable and flexible protector constructed from a breathable stretch mesh for a comfortable, close fit
  • Elasticated top strap for a customizable fit
  • Highly convenient and time-saving slip-on design with elasticated hems and silicon printing to prevent slippage and to help keep the protector securely positioned
  • New design Nucleon Flex Technology protectors are highly perforated and secured on the outside of the sleeve for excellent breathability and ventilation
  • Additional side foam padding for additional coverage
  • Abrasion resistant fabric front panel for increased durability

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: 25621007785

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4.4 ★★★★★
Based on 14 reviews
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Toby W.
Pawtucket, US
★★★★★ 4
Order 1 size larger.
Size: X-Large, Color: Blue White Plaid
Nice shirt. The size is not accurate by any stretch of the imagination. I wear size xl in shirts except for this one. An xl fits like a large. Other than that I like the shirt. I would've given it 5 stars if not for the sizing. I'll give away this one and order an xxl. Just order a size above what you wear and you'll be happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
N
Verified Purchase
Never received the order
Los Angeles, US
★★★★★ 5
Nice fit
Size: X-Large, Color: Grey
Great value for the money. Would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
J
Verified Purchase
John Robinson
Louisville, US
★★★★★ 5
Satisfied with color and fit
Size: Small, Color: Light Purple
For the money, this is a good shirt. True, the material is a bit thin and there is a feeling of 'fragility' (loose threads here and there) but the color is nice, the texture is appropriate. The sizing is what I call "New American". I was a medium my whole life but supersizing has made me into a small. I haven't changed, Americans have grown bigger. I am six feet tall and a bit (180+ cm) and weigh 155 pounds (70kg and a bit). The small fits me just fine everywhere but the shoulders are just barely wide enough. If you have slightly wider shoulders but are similar to me otherwise, this may be too tight for you in that one place.
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Reviewed in the United States on May 13, 2025
J
Verified Purchase
Joan A Bernard
Birmingham, US
★★★★★ 3
Fits too tight at waist.
Size: XX-Large, Color: Wine
Quality of product satisfactory, however size labeling incorrect. I ordered a XXL that is too tight at the waist. It should be labeled XXL Trim.
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Reviewed in the United States on May 28, 2026
K
Verified Purchase
KWC 1960
Draper, US
★★★★★ 5
Men’s Oxford Shirt
Size: Large, Color: Green
Very nice looking shirt. It’s comfortable and classy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026

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