The Aeron redefines XC performance through advanced construction and precision fit. The ripstop upper with TPU bumpers offers protection without added weight, while dual NUUN 001C dials and external Firmor reinforcement ensure secure responsive support. A fast-adapting instep and UNUM tongue deliver a pressure-free fit complemented by a tool-free heel adjuster for fine-tuned stability. The sole features a stiffness index of 11 with generous rubber coverage that offers powerful traction and efficient energy transfer.