The SIDI ST Inner Shin Plate is a crucial replacement part designed for SIDI ST and ST Air boots, offering enhanced protection and durability. This inner shin plate provides excellent shin coverage, ensuring your boots maintain their structural integrity during intense rides. Easy to install, it offers long-lasting protection and helps restore the original performance of your boots. The sleek black/gray design complements the look of your SIDI boots, making it both a functional and aesthetic upgrade.