RockTape Assassins Knee Sleeves

Item No. 17370-1801

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Built for Competition
There's only one sleeve that can help get you to become one of the fittest athletes on earth - the RockTape Assassins Knee Sleeve. Press play to witness the official CrossFit knee sleeve to go stronger, longer.

Product Description


RockTape Assassins Knee Sleeves will help you power through your workouts. These competition-grade knee sleeves keep joint pain from slowing you down through a high-performance design based on feedback from professional athletes and RockTape customers. The extra-tall design keeps your knee sleeve from slipping or shifting during movement and provides VMO (vastus medialis oblique) support. Created from durable, high-quality material, these RockTape knee sleeves are equipped to keep up with the most grueling workouts. Wondering what the next step should be in your fitness journey? The RockTape Assassins Knee Sleeves are here to help you step up your game and meet your goals.


  • Provides joint support
  • Prevents knee abrasions
  • Gives VMO (vastus medialis oblique) support
  • Extra tall design prevents slippage and shifting
  • One-year warranty against defects and premature failure
  • Ideal for: Weightlifting, high-intensity interval training, obstacle courses, running, and cycling


  • Extra tall design
  • Bond: SBR Neoprene
  • Stitching: Double Mauser
  • ​​​Material: Synthetic fabric shell
  • Side Panels: 4-way Stretch Lycra
  • Thickness Options: 5mm (moderate support) 7mm (maximum support)


Measure around the center of your patella. If you measure on the higher end of a size, go a size up.

Size XS S M L XL
Inches 10.5" - below 10.5 - 12.5" 12.5 - 13.5" 13.5 - 14.5" 14.5 - above

Customer Reviews

5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Comfortable. Stays in place well when running. Knee pain when running is reduced.
August 30, 2020
1 year ago
Rated 5 out of 5
Great support
Really like for heavy lifting. Husband uses his for lunges and regular squats but it’s a bit too much constriction for me for routine squat type exercises.
July 9, 2020
1 year ago
Rated 5 out of 5
Saved my knees
Love the product. Getting back into working out, and the squats were killing my knees. Instead of having to take time off from the gym, I bought these. Had no down time and my knees are fine! Would highly recommend!!
December 10, 2018
over 2 years ago