Jack Wolfskin M WISPER INS JACKET MCombining recycled TEXAPORE ECOSPHERE PRO fabric for complete weather protection with PRIMALOFT insulation, the hooded Wisper jacket will keep you warm and protected when the weather is trying to freeze you out. Simple lines with an adjustable fixed hood, hem, and cuffs mean you can seal out the weather, and because the insulation is PRIMALOFT, it's a great choice when you know you'll be generating a lot of heat with your activity.