Polygiene fabric solution gives the socks a permanent and effective odour elimination hour after hour after hour. Anatomically defending ankle protectors for unstable terrain High abrasion resistant fabric for the toughest of running abuse Chevron design anti slip weave across the foot bed to provide better stability when you move in any direction Mid-level anatomical cushioning in key pressure zones for optimum comfort, with the normal high standard moisture transfer and breathability of a Hilly Sock