From the manufacturer

A durable, comfortable knee guard for the tough all-day riders. It provides premium protection with a combination of 3DF soft impact foam with a hard-shell outer slider. A moisture-wicking, perforated Neoprene sleeve guarantees excellent ventilation, and a silicone coated thigh strap ensures a solid fit. The design is left-or-right knee specific. With a 3D design and soft edges, the Enduro knee guard is made to match you mile for mile.

Features

• Total Leatt® protection score of 20 points
  
  
• Hard shell 3DF ventilated soft impact foam
  
  
• 3D design for optimal fit with specific left and right sides
  
  
• CE tested and certified as impact protection
  • Knee EN1621-1 level 1
    
    
• Premium comfort all day long using MoistureCool and AirMesh fabrics
  
  
• Improved hard shell sliding surface
  
  
• Ventilated perforated Neoprene sleeve
  
  
• Silicone coated integrated thigh strap
  
  
• Soft edges offer superior feel and comfort
  
  
• Weight: From 500g (1.1lbs) pair
  
  
• Sizing: - S/M - L/XL - XXL