When you're headed out for a cold winter's run, the Smartwool PhD HyFi Zip Tight are your gaurantee for comfort. They fit to your body in a way that let's you forget about your clothes and focus on your breathing.
- Semi-Form Fit - Mid Rise
- HyFi Terry Back knit
- Covered elastic waistband with drawcord adjustability
- Secure concealed zip pocket at back right yoke
- Flatlock seams and heat transfer logo at back right calf