When you're out there, the last thing you want to think about is your feet. That's why we made the PhD Pro Medium Crew with Indestructawool‚Äö√Ñ√∂‚àö√ë‚àö‚àÇ‚Äö√†√∂‚àö¬¥¬¨¬¬¨¬¢ technology, a 4 Degree‚Äö√Ñ√∂‚àö√ë‚àö‚àÇ‚Äö√†√∂‚àö¬¥¬¨¬¬¨¬¢ elite fit system, and body mapped mesh vents for breathability. So you can escape without distractions and feel supported wherever your feet take you. Get out there and explore.