IXS Trigger Knee Protectors The best of both worlds: The ergonomically shaped, flexible 3D Xmatter foam offers a high degree of absorption, protection and comfort when pedaling. In addition, the hard shell component on the tibia converts impact energy into kinetic energy in a fall and reduces the risk of the schooner slipping. With the Trigger Knee Guard, features such as removable protective foam and a meticulously revised AeroMesh (TM) of the latest generation with better comfort properties and lasting strength. Perfect for harder Enduro and All Mountain uses. Features: ergonomically preformed Xmatter (TM) protection foam (replaceable) generous Vortex ventilation channels ensure a constant air circulation individually and specifically shaped left and right flexible joint zone allows and supports pedaling AeroMesh, lightweight, breathable and antibacterial, reliably dissipates moisture, high strength and improved comfort loopLock closures silicone print on the upper waistband prevents slipping.