The Polar WearLink+ is a soft textile strap, intended to be worn around the chest to transmit the user's heart rate wirelessly to a Nike+ iPod Sport Kit or SportBand.
Thankfully, the strap itself is machine-washable so sweat doesn't need to build up on it overtime. Just don't forget to remove the battery. Users will get feedback of their beats per minute (BPM) either on the SportBand or have it spoken to them from the iPod kit. Data can also be uploaded to nikeplus.com for further tracking and analysis.
Compatible with most Polar training computers and the fifth-generation iPod Nano, the Polar WearLink+ will become available in the U.S. first in June for $69.95, followed by Canada and Europe at the beginning of July.