According to the query fashion. Com, winter pants need a bigger size, because winter pants need to provide better warmth. For ordinary adults, the waist circumference of trousers usually increases by 2-3 cm in winter, so the size of trousers should be increased accordingly 1-2. Therefore, it is better to buy a larger size of pants in winter.

Summer clothes pay attention to lightness, breathability and comfort, while winter clothes pay more attention to warmth, massiness and durability. Therefore, in winter, clothing manufacturers usually use thicker materials and tighter knitting to keep warm. These extra materials and thickness will increase the waistline, because they increase the volume of the body.