Some puffer jackets are filled with down, but numerous are filled with synthetic sequestration that’s lighter than down. While still furnishing the same warmth. Because synthetic sequestration doesn’t clump or break apart as much as down sequestration after washing, it makes a superior work jacket. Puffer jackets admit their name from the pattern of sutured portions packed with sequestration to give them that” fluffy” appearance. Its” air”can vary depending on the quality, viscosity, and garret of the sequestration, whether synthetic or natural. Some puffer jackets can come big and circumscribe your range of stir.