What Thinsulate™ Level Should I Use? - Superior Glove
Feb 07, 2018·The lower the gsm, the less protection the glove will give you in extreme cold conditions. A higher gsm means that the gloves will keep your hands warm in sub-zero conditions, but you will lose hand movement because the fabric is thicker. For example, gloves with a 40 gsm Thinsulate™ rating are great for working in mild temperatures.