Sport socks with 5 toes separated for hygiene, it has anti-slip grip below for elderly especially, anti-fungus & most importantly the mid sole is made in a special way that it will lift your arch up, suitable for anyone with collapsed arch or pronated feet. 
 
Anti-Slip
Anti-Bacterial
Anti-Odor
Anti-Fungus
Arch Ankle Support
Breathable 

Size Guide
medium size for < 1.7m-
large size for < 1.8m-
extra large for > 1.8m
 
Materials : Cotton 81%, Rubber 9%, Nylon 5%, Elastic Fiber 5%