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Klim Aggressor Cool Knee Brace Socks

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Q & A

Have a product related question about fit, features, or functionality? Ask it here.

If you have a question about availability or need immediate assistance, call 1-800-841-2960.

What is the size difference between the medium and large? I typically wear a size 11 boot and have average sized legs
Trevor - September 15, 2019
Thank you for your inquiry Trevor. I wear a 9 to 9.5 motocross boot and I am wearing the Medium. I do have a bit of room in the toes... and could potentially wear a small. You being size 11 I would suggest a Large, unless you want them super snug. This Cooling Fabric is amazing... They are light weight and about as breathable as any knee brace sock could be. -- Kyle & the Chap Moto Team
Chaparral Motorsports Customer Support - September 16, 2019
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Klim Aggressor Cool Knee Brace Socks

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Orders $100 and over qualify for our free shipping offer. See our full shipping policy for further shipping details.

Return any new, unused and unaltered item within 30 business days. Create a return label online for as little as $7.99. Please read our return policy.


Klim's Aggressor Cool -1.0 Knee Brace Sock provides a level of cooling and comfort never before seen in the power sports industry. Coolcore's patented chemical free cooling, moisture wicking, moisture transportation and cool evaporation fabrics are exactly what you need to keep cool and maximize performance. Unlike other cooling and sweat wicking fabrics that rely on chemicals or polymer crystal treatments that degrade over time, Klim's Aggressor Cool fabrics will deliver consistent cooling and wicking performance throughout the lifetime of the garment. When high performance athletes demand high performance cooling and comfort, they choose the Klim Aggressor Cool -1.0 Knee Brace Sock.


  • Mid-thigh height knee brace sock made from Klim Aggressor cool fabric featuring Coolcore
  • Wear a knee brace comfortably and stay dryer with moisture management
  • Wicks moisture away from skin to stay cool in hotter conditions
  • Grip calf and grip silicon thigh elastic to keep sock up
  • Combination of technical venting and density for padding
  • Light knit venting on front of foot
  • Extra padding under foot and heel
  • Compression knit around arch
  • Scent control/anti-microbial
  • Black


Age & Gender

Item Numbers

Details Item Number Availability Store Pickup
Details:Black  S Item #261-3166-000-120-320 Availability:Available: Ships in 3-5 daysStore Pickup:Unavailable
Details:Black  M Item #261-3166-000-130-320 Availability:In stock: Ready to shipStore Pickup:Available
Details:Black  L Item #261-3166-000-140-320 Availability:In stock: Ready to shipStore Pickup:Available


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