Skip to Main Content

Next Gen Gear Is Here: Shop New Alpinestars, REV'IT! & More

A Legend Is Born: Get The New Alpinestars S-R7 Helmet

Insta360 Spring Sale: Save 25% On Select 360° Cameras

Get $15 Cash, Free 2 Day Shipping & More Perks With RPM*

F216DFA3-1CFF-4B9B-9A3E-BCB1D82A7E3E@1x Shop Your Ride
Search Suggestions
View All Results
Menu
Free Shipping over $49.99 Learn More ZillaCash: $5 for every $100 Learn More Customer Service From Riders Learn More

O'Neal Knee Guard Sizing

Size Thigh (in) Calf (in)
SM 16.5 13.8
MD 16.5-17.3 13.8-14.5
LG 17.3-18.1 14.5-15.3
XL 18.1-18.9 15.3-16.1
2XL 18.9-19.7 16.1-16.5

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How to Measure

  • T Thigh
    Measure the circumference of your thighs at the widest point, while in a seated position, with your knees bent to a 90° angle.
  • CF Calf
    While standing upright, feet flat on the floor, measure the circumference of your calf at the widest point, while keeping your ankle bent at a 90° angle.
$39.99/yr.
Spend Less. Ride More.
  • 5% RPM Cash Back*
  • 10% Off Over 70 Brands
  • $15 in RPM Cash When You Join
  • Free 2-Day Shipping & Free Returns*
  • And more!
Become a member today! Learn More
By purchasing and enrolling in Riders Preferred Membership, you agree to the Program Terms and Conditions. *Some exclusions apply: 10% RPM discount applies on full price and sale price Exclusive Brands. 10% RPM discount applies on additional select brands at full price. Exclusions apply. RPM free 2-day shipping applies on qualifying items, contiguous U.S. only. Not available for AK, HI, or U.S. Territories. View shipping policies. RPM free returns apply on qualifying items and are processed on standard return timeline, contiguous U.S. only. View return policy.