The KaHa Shirt offers runners an affordable means of ECG tracking that is both accurate, unobtrusive, and washable. Developed by KaHa, in assistance with Singapore’s Ministry of Trade and Industry, and textile producer Tex Lane, the smart t-shirt utilizes a variety of electrodes that make contact with the body. This shirt itself has been custom designed to be two layers, with the internal layer being tight against the skin.
The material used in the KaHa Shirt is fully breathable to help reduce the wearer's temperature while exercising. A gray stripe on the bottom of the shirt holds a small plastic housing that connects to the electrodes. The housing also utilizes Bluetooth to sync collected data to a user's phone, which will display ECG metrics and resting heart rate intervals, while also flagging abnormalities when detected.