A company has developed smart underwear that can keep track of workouts just like your fitness tracker or smartwatch.
The underwear, called SKIIN, monitors sleep quality, heart rate, breathing rate, activity, steps, calories, among other things.
The skivvies, which come in boxers or briefs, feature a 24-hour battery that powers six sensors, which are sewn into the fabric and that connect to your phone.
Unfortunately, at $279 for four pairs, they’re not cheap. (AskMen)