When is the best time for our lightweight NAMPA insulation jacket? Always! Whether it’s fall, winter, spring or summer, there’s always a good reason to take NAMPA with you. It’s so light you’ll hardly notice you’re wearing it. And it keeps you comfortably warm. When it’s very cold outside, NAMPA is the ideal extra insulation or perfect for strenuous activities. In the warmer season it is the ideal jacket for colder hours. The filling of the NAMPA consists of DuPont Sorona®. This is a bio-based fiber that consists of 37% renewable plant-based raw materials. 30% less energy is used in the production of the fiber and there are 60% fewer emissions. And the nice thing is: it is durable and – like our outer material – very stretchy!