What is a "down vest"?

A down vest, also known as a puffer vest, is a sleeveless jacket that is filled with down or synthetic insulation to provide warmth while allowing for greater mobility and flexibility. Down vests are typically lightweight and breathable, making them ideal for layering over other clothing during cooler weather. They may have a zippered or snap front, and may feature a range of pockets for storage and convenience. Down vests come in a range of colors and styles, and are a popular choice for outdoor activities such as hiking or camping, as well as for casual everyday wear.