The Fox Enduro Knee Sleeves are lightweight, slip-on, trail-tuned, and pedal-friendly, offering protection and comfort for every ride. Made from a moisture-wicking micro-lycra material with a nylon mesh rear panel, they keep air flowing as you climb and stay secure as you descend. Key Features Breathable Construction - Moisture-wicking micro-lycra sleeve with a nylon mesh rear panel for increased airflow. Impact Protection - Removable D3O knee inserts deliver the perfect balance of comfort and protection from trail impacts. Secure Fit - Silicone grip at the top and bottom keeps the guards securely in place throughout your ride. Freedom of Movement - High-stretch rear panel allows a full range of motion while maintaining a stable, comfortable fit.