The video talks about how the grams of insulation in a hunting garment is measured. It is not the total weight of the insulation, but the weight per square meter. For example, a glove with 320 grams of thinsulate does not mean that the whole glove weighs 320 grams, but only the back part of the glove has 320 grams of thinsulate.
What does the grams of insulation in a hunting garment refer to?
What is the difference between grams of thinsulate and grams of merino wool?