Being offered for sale today is a:

Lifeworks Neoprene Sport Sleeve reflective arm band for iPhone, iPod, etc. In black and silver with a key/cash keeper in Excellent Used Condition.

The device slot measures 5" x 3-1/2" and is reported to fit iPhone versions 4/4s/5, iPod touch 4th/5th generation, iPod Classic, and any other MP3 player or smartphone that fits.  An access hole for wired earbuds sits on the back of the sleeve and a slot for a key or cash is on the front.

The arm band has 2 slots, A and B, to accommodate different arm sizes.  The silver band around the vinyl device face is reflective and ready to protect you on your next run, jog, or ride.

Shipped domestically via USPS First Class OR Priority Mail Flat Rate Envelope service, buyer's choice.