Racesox may be about technical attributes that any serious athlete would require, but we haven't forgotten that each competitor has his/her own special preferences. The RX100 is designed for the athlete who prefers an ultra-lightweight sock so as to maximize the sole's ability to grip the pedal or the track. Flat-knit construction throughout this sock coupled with TCK's proDRI^&trade system creates just enough of a layer between the foot and the shoe to provide comfort and transfer moisture away from the skin. And, there's no cutting corners when it comes to durability.

Popular Uses:

• Cycling, Triathlons, Running, and Training

Performance Features:

• TCK's proDRI^&trade system insulates and manages moisture while fighting odor and bacteria


• Double welt top for comfort and fit


• Flat-knit body yields ultra-lightweight form


• Arch support reduces foot fatigue and increases circulation


• Mesh instep aids in breathability


• Smooth toe seam adds comfort


• Available Colors: White

Sock Contents:

• 88% Polypropylene


• 8% Nylon


• 2% Elastic


• 2% Lycra^®

Care Instructions:

• Polypropylene is a hydophobic fabric best preserved when machine washed and dried on low heat for 10 minutes. No Bleach. Launder inside out to prevent pilling and fuzzing.