The Sidi Crossfire Metatarsus Insert is a genuine replacement component designed to reinforce upper foot protection on Crossfire 2, Crossfire 2 SRS, Crossfire 3, and Crossfire 3 SRS boots. Constructed from rigid nylon, this insert strengthens the metatarsal area to help guard against impacts, debris, and abrasion during aggressive off-road riding. By restoring this critical protective zone, it helps maintain the boot's structural integrity and long-term performance in demanding conditions. Easy to install and built to Sidi's durability standards, the Crossfire Metatarsus Insert keeps your boots protective, supportive, and ride-ready.