There's no shortage of wearable tech to help you track your distance and speed when you run, but the smart sock from Sensoria Fitness can actually give you detailed feedback on your running technique.

The company is aiming the sock at the serious runner - "the marathon runner looking to improve their time" according to a Sensoria spokesperson at CES 2015.

The same spokesperson told that when it ships, a pack of two socks and one anklet will retails for $199.