A garment with a hood, wherein three groups of connectors are installed on and around the opening edge of the hood surrounding the face of the wearer. Each group of the three groups of connectors are positioned at a vertex of a triangle shape. When the hood has been put on the head of the wearer, the exposure area of the wearer's face is to be adjusted to be smaller or larger, by tightening or untightening one pair, or more than one pair of the connectors. When tightened, the hood forms better thermo-insulation, and provides better protection for the user against severe weather including cold, wind and snow.