What's a workout without some tunes to get you pumped? The perfect companion for yurbuds' smart earphones, yurbuds im performance armband is made from ultra-soft neoprene that wicks away moisture while providing a secure, comfy fit for most arm sizes. Keep your smart phone, ipod or other mp3 device protected from the elements with a touch screen-friendly cover. The performance armband includes the option to customize a personally engraved safety id to include all of your emergency contact information. Endorsed by ironman. Compatible with the iphone 4/4s.