Vests are garments resembling jackets only without sleeves, they are worn to add warmth without a full jacket. Vests may also be made of lightweight materials as a fashion item.
About Winter:
Winter is the coldest period of the four seasons. Winter occurs between fall and spring; during the months of December, January, and February in the northern hemisphere; and during June, July and August in the Southern hemisphere. Winter is characterized by cold weather, with snow and ice on the higher latitudes.
