Men's ActiveIce Spectrum Sun T-Shirt Size:Medium use the built-in track run

use the built-in track run activity to record accurate lap distances and see your distances in meters

and an integrated hook and loop cover stashes excess strap so it’s not  flapping in the breeze

Extra Large: 10

GORE-TEX has over 9 billion pores per square inch that prevent water from getting to your feet while allowing sweat vapor to pass right through

Men's ActiveIce Spectrum Sun T-Shirt Size:Medium use the built-in track runPowered by the same thermo regulating formula as ActiveTemp. Best selling ActiveIce technology works more efficiently and effectively than ever before. Our proprietary self cooling technology now reacts to increases in your body temperature by dynamically cooling you faster when you need it most. A special additive drives this cooling process via phase changes, which keeps the wicking, breathable, and quick drying ActiveIce technology the ideal