ThermoPlus technology is LEVEL's science-based ‘heat certification’ system. The company uses both a climate chamber and a live test environment to measure a glove's ability to retain heat effectively. The result is a ‘performance index’ that gives each glove or glove a different level of ThermoPlus certification. The higher the level, the warmer your hands will be, even in very cold temperatures.

Hydrofill is a thin microfibre as a lining in Level brand gloves. It provides excellent thermal insulation and comfort, keeping your hands warm even in cold temperatures. This material makes the gloves extremely comfortable to wear.

Fiberfill is a synthetic material, also known as polyester fibre, mainly used as a filling or cushioning material. It is characterised by its lightness, softness and good thermal insulation.