Swiftwick Aspire Sock Four (Crew) Type_Bra incorporating Dynamotion Fit which allows

incorporating Dynamotion Fit which allows the shoe to stretch and move with your foot

The 230 is the update to the 212

Exaggerated curved hem helps keep you covered as you run

Underarm gusset

Multiple pockets offer convenient storage on your route

Swiftwick Aspire Sock Four (Crew) Type_Bra incorporating Dynamotion Fit which allowsSwiftwick Aspire 200 running socks feature: Managed Compression proven to reduce swelling, improve circulation and increase endurance Sculptured Footbed and Seamless Toe assuring maximum comfort and a blister free sock even for the most sensitive feet Moisture Management antimicrobial materials designed to wick away moisture without the use of chemicals 200 needle construction for longer lasting and better fit. Four height is Crew length.