You can't wear the shirt 'til you cross the finish line.
And you can't hope to cross the finish line if you don't train. Griffin's Trainer armband is built to follow you from training day to race day.
Trainer for iPhone starts with a wide, stretch armband that adjusts to fit arms up to 19 inches in circumference. A slide-ring adjusts the band to fit then holds it in place. Trainer has a lightweight windowed case to hold your iPhone. The perforated case frame is backed with sweat-wicking neoprene, allowing airflow to keep things cool and comfortable.
A transparent touch-through window lets you control your Multi-Touch display, so you can adjust volume, navigate playlists, and control your iPhone.