The host uses a cotton T Shirt, lightweight gi (8oz) and heavyweight gi (14oz) to demonstrate the practical and performance differences of different gi weights.

The size of a gi is only one metric you'll have to choose in order to get the best one for your needs. The weight of a gi (measured in ounces) will dictate the heaviness of the material and the general stitch count. Choosing the right one can affect your comfort and performance.