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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
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Description
Alpinestars - Bionic Plasma Knee Protector (Youth)Alpinestars Bionic Plasma Knee Protector (Youth) Engineered specifically for younger off road riders, the Bionic PLASMA Youth Knee Protector is lightweight, comfortable, and protective, featuring a removable Nucleon PLASMA knee protector embedded in a highly breathable chassis for enhanced rider comfort. Key Features: Highly Comfortable: The Nucleon PLASMA knee protector is made from a USDA Certified Biobased viscoelastic material that absorbs and
Alpinestars - Bionic Plasma Knee Protector (Youth)
Engineered specifically for younger off-road riders, the Bionic PLASMA Youth Knee Protector is lightweight, comfortable, and protective, featuring a removable Nucleon PLASMA knee protector embedded in a highly breathable chassis for enhanced rider comfort.
Key Features:
- Highly Comfortable: The Nucleon PLASMA knee protector is made from a USDA Certified Biobased viscoelastic material that absorbs and disperses impact energy while providing maximum coverage in all riding positions. Engineered for multi-directional pliability, the protector conforms to the knee for a snug and secure fit, and delivers reliable protection.
- Ventilated Chassis Design: The chassis features a 3D mesh front panel for superior levels of ventilation and airflow, along with abrasion-resistant fabric that covers the knee area.
- Stretch Mesh, Ventilated Construction: Soft, stretch mesh at the rear of the lower legs provides a comfortable fit for riders with various calf sizes, while the open knee construction behind the knee helps to prevent heat build-up while maximizes ventilation.
- Extended Coverage: Extra side padding for extended coverage.
Construction:
- USDA Certified Biobased, eco-friendly, and sustainable impact absorbing material.
- Extra side padding for extended coverage.
- Level 1 CE-certified Nucleon PLASMA knee protector is removable for easy cleaning.
- Constructed with a soft tactile inner padding for enhanced rider comfort.
- Pre-shaped construction features soft-touch, perforated stretchable padding for enhanced comfort and superior airflow.
- The anatomically sculpted upper calf and upper hem silicon strips keep the protector securely in position
Protection:
- 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:
- 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
4.2 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
My Husband’s Favorite Socks
Size: Large, Color: (035) Steel / White / Black
The Under Armour Unisex Training Cotton No Show Socks have become my husband’s absolute favorite socks—and he’s pretty picky about socks.
Comfortable Fit:
They’re soft, comfortable, and fit well without being too tight. They stay in place all day with no slipping or bunching.
Great for Everyday Wear:
Perfect for workouts, walking, and everyday use. They provide just the right amount of cushioning without feeling bulky.
Durable & Long-Lasting:
These hold up really well through regular wear and washing. They keep their shape and don’t wear thin quickly.
Reliable Under Armour Quality:
You can tell they’re well made. Consistent quality that matches what you expect from Under Armour.
Overall Impression:
When someone has a favorite sock and keeps reaching for it, that says everything. These are comfortable, durable, and dependable.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Quality Under Armour socks
Size: Large, Color: (100) White / White / Black
Nice medium thick sock that is breathable but cushioned. It stays put in the show and doesn’t fall down. Fit is true to size, no show/minimal show
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Perfect Pairs
Size: Large, Color: (100) White / White / Black
Very comfortable, soft & affordable..
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Excellent athletic socks
Size: Large, Color: (100) White / White / Black
Solid athletic socks at a great price. Not too thick, not too thin. Second time I've purchased them. They last longer than most socks I've used in the past too.
Only concern is the sizing. I may be reading the sizing chart wrong, but for my size 13 feet it says XL are the correct sock size. I've ordered Large twice and they're perfect. I would imagine the size Large socks would also fit up to size 14 shoe, but probably need to go with XL if foot is lager than 14.
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Reviewed in the United States on April 12, 2026
★★★★★ 4
Great product
Size: Large, Color: (035) Steel / White / Black
Comfortable fit perfect
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Reviewed in the United States on March 15, 2026