Griffin Technology ( and sports goods manufacturer Adidas, have cooperated to produce the miCoach Sport Armband. The ultra-lightweight armband, available for iPhone, iPod touch, and other smartphones, is the result of a design collaboration between Griffin and adidas, purpose-built for use with adidas’s new miCoach personal trainer software.

The US$29.99 adidas miCoach armband is available in two versions — one for iPhone and iPod touch, and one for various smartphone devices. The lightweight performance nylon wraps around your upper bicep, and a sweat-proof, touch-through screen cover protects your device while you use it. An inline pocket holds your house or gym key, and a strategically placed port accepts headphones.